257571991768

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{1747}}^1$

素因数の和:1990

約数の個数: 256

約数和(自身を含む): 631495065600

約数和(自身を除く): 373923073832

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 47, 52, 56, 62, 91, 94, 104, 124, 139, 182, 188, 217, 248, 278, 329, 364, 376, 403, 434, 556, 611, 658, 728, 806, 868, 973, 1112, 1222, 1316, 1457, 1612, 1736, 1747, 1807, 1946, 2444, 2632, 2821, 2914, 3224, 3494, 3614, 3892, 4277, 4309, 4888, 5642, 5828, 6533, 6988, 7228, 7784, 8554, 8618, 10199, 11284, 11656, 12229, 12649, 13066, 13976, 14456, 17108, 17236, 18941, 20398, 22568, 22711, 24458, 25298, 26132, 30163, 34216, 34472, 37882, 40796, 45422, 45731, 48916, 50596, 52264, 54157, 56017, 60326, 75764, 81592, 82109, 84929, 90844, 91462, 97832, 101192, 108314, 112034, 120652, 132587, 151528, 158977, 164218, 169858, 181688, 182924, 202523, 216628, 224068, 241304, 242833, 265174, 317954, 328436, 339716, 365848, 379099, 392119, 405046, 433256, 448136, 485666, 530348, 574763, 594503, 635908, 656872, 679432, 704041, 758198, 784238, 810092, 971332, 1060696, 1067417, 1149526, 1189006, 1271816, 1408082, 1417661, 1516396, 1568476, 1620184, 1699831, 1942664, 2134834, 2299052, 2378012, 2545379, 2632799, 2816164, 2835322, 3032792, 3136952, 3156829, 3399662, 4269668, 4598104, 4756024, 4928287, 5090758, 5265598, 5632328, 5670644, 6313658, 6799324, 7471919, 7527823, 8539336, 9856574, 10181516, 10531196, 11341288, 11413151, 12627316, 13598648, 14943838, 15055646, 17817653, 18429593, 19713148, 20363032, 21062392, 22097803, 22826302, 25254632, 29887676, 30111292, 33089927, 35635306, 36859186, 39426296, 44195606, 45652604, 52694761, 59775352, 60222584, 66179854, 71270612, 73718372, 79892057, 88391212, 91305208, 97861699, 105389522, 132359708, 142541224, 147436744, 148370963, 159784114, 176782424, 195723398, 210779044, 231629489, 264719416, 296741926, 319568228, 353807681, 391446796, 421558088, 463258978, 593483852, 639136456, 685031893, 707615362, 782893592, 926517956, 1038596741, 1186967704, 1370063786, 1415230724, 1853035912, 2077193482, 2476653767, 2740127572, 2830461448, 4154386964, 4599499853, 4953307534, 5480255144, 8308773928, 9198999706, 9906615068, 18397999412, 19813230136, 32196498971, 36795998824, 64392997942, 128785995884, 257571991768]

約数ペア:

[(1, 257571991768), (2, 128785995884), (4, 64392997942), (7, 36795998824), (8, 32196498971), (13, 19813230136), (14, 18397999412), (26, 9906615068), (28, 9198999706), (31, 8308773928), (47, 5480255144), (52, 4953307534), (56, 4599499853), (62, 4154386964), (91, 2830461448), (94, 2740127572), (104, 2476653767), (124, 2077193482), (139, 1853035912), (182, 1415230724), (188, 1370063786), (217, 1186967704), (248, 1038596741), (278, 926517956), (329, 782893592), (364, 707615362), (376, 685031893), (403, 639136456), (434, 593483852), (556, 463258978), (611, 421558088), (658, 391446796), (728, 353807681), (806, 319568228), (868, 296741926), (973, 264719416), (1112, 231629489), (1222, 210779044), (1316, 195723398), (1457, 176782424), (1612, 159784114), (1736, 148370963), (1747, 147436744), (1807, 142541224), (1946, 132359708), (2444, 105389522), (2632, 97861699), (2821, 91305208), (2914, 88391212), (3224, 79892057), (3494, 73718372), (3614, 71270612), (3892, 66179854), (4277, 60222584), (4309, 59775352), (4888, 52694761), (5642, 45652604), (5828, 44195606), (6533, 39426296), (6988, 36859186), (7228, 35635306), (7784, 33089927), (8554, 30111292), (8618, 29887676), (10199, 25254632), (11284, 22826302), (11656, 22097803), (12229, 21062392), (12649, 20363032), (13066, 19713148), (13976, 18429593), (14456, 17817653), (17108, 15055646), (17236, 14943838), (18941, 13598648), (20398, 12627316), (22568, 11413151), (22711, 11341288), (24458, 10531196), (25298, 10181516), (26132, 9856574), (30163, 8539336), (34216, 7527823), (34472, 7471919), (37882, 6799324), (40796, 6313658), (45422, 5670644), (45731, 5632328), (48916, 5265598), (50596, 5090758), (52264, 4928287), (54157, 4756024), (56017, 4598104), (60326, 4269668), (75764, 3399662), (81592, 3156829), (82109, 3136952), (84929, 3032792), (90844, 2835322), (91462, 2816164), (97832, 2632799), (101192, 2545379), (108314, 2378012), (112034, 2299052), (120652, 2134834), (132587, 1942664), (151528, 1699831), (158977, 1620184), (164218, 1568476), (169858, 1516396), (181688, 1417661), (182924, 1408082), (202523, 1271816), (216628, 1189006), (224068, 1149526), (241304, 1067417), (242833, 1060696), (265174, 971332), (317954, 810092), (328436, 784238), (339716, 758198), (365848, 704041), (379099, 679432), (392119, 656872), (405046, 635908), (433256, 594503), (448136, 574763), (485666, 530348)]