255639888

素因数分解:

$2^4\times 3^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:165

約数の個数: 280

約数和(自身を含む): 884752896

約数和(自身を除く): 629113008

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 31, 36, 42, 48, 54, 56, 62, 63, 72, 81, 84, 93, 101, 108, 112, 124, 126, 144, 162, 168, 186, 189, 202, 216, 217, 243, 248, 252, 279, 303, 324, 336, 372, 378, 404, 432, 434, 486, 496, 504, 558, 567, 606, 648, 651, 707, 729, 744, 756, 808, 837, 868, 909, 972, 1008, 1116, 1134, 1212, 1296, 1302, 1414, 1458, 1488, 1512, 1616, 1674, 1701, 1736, 1818, 1944, 1953, 2121, 2232, 2268, 2424, 2511, 2604, 2727, 2828, 2916, 3024, 3131, 3348, 3402, 3472, 3636, 3888, 3906, 4242, 4464, 4536, 4848, 5022, 5103, 5208, 5454, 5656, 5832, 5859, 6262, 6363, 6696, 6804, 7272, 7533, 7812, 8181, 8484, 9072, 9393, 10044, 10206, 10416, 10908, 11312, 11664, 11718, 12524, 12726, 13392, 13608, 14544, 15066, 15624, 16362, 16968, 17577, 18786, 19089, 20088, 20412, 21816, 21917, 22599, 23436, 24543, 25048, 25452, 27216, 28179, 30132, 31248, 32724, 33936, 35154, 37572, 38178, 40176, 40824, 43632, 43834, 45198, 46872, 49086, 50096, 50904, 52731, 56358, 57267, 60264, 65448, 65751, 70308, 73629, 75144, 76356, 81648, 84537, 87668, 90396, 93744, 98172, 101808, 105462, 112716, 114534, 120528, 130896, 131502, 140616, 147258, 150288, 152712, 158193, 169074, 171801, 175336, 180792, 196344, 197253, 210924, 225432, 229068, 253611, 263004, 281232, 294516, 305424, 316386, 338148, 343602, 350672, 361584, 392688, 394506, 421848, 450864, 458136, 507222, 515403, 526008, 589032, 591759, 632772, 676296, 687204, 760833, 789012, 843696, 916272, 1014444, 1030806, 1052016, 1178064, 1183518, 1265544, 1352592, 1374408, 1521666, 1578024, 1775277, 2028888, 2061612, 2282499, 2367036, 2531088, 2748816, 3043332, 3156048, 3550554, 4057776, 4123224, 4564998, 4734072, 5325831, 6086664, 7101108, 8246448, 9129996, 9468144, 10651662, 12173328, 14202216, 15977493, 18259992, 21303324, 28404432, 31954986, 36519984, 42606648, 63909972, 85213296, 127819944, 255639888]

約数ペア:

[(1, 255639888), (2, 127819944), (3, 85213296), (4, 63909972), (6, 42606648), (7, 36519984), (8, 31954986), (9, 28404432), (12, 21303324), (14, 18259992), (16, 15977493), (18, 14202216), (21, 12173328), (24, 10651662), (27, 9468144), (28, 9129996), (31, 8246448), (36, 7101108), (42, 6086664), (48, 5325831), (54, 4734072), (56, 4564998), (62, 4123224), (63, 4057776), (72, 3550554), (81, 3156048), (84, 3043332), (93, 2748816), (101, 2531088), (108, 2367036), (112, 2282499), (124, 2061612), (126, 2028888), (144, 1775277), (162, 1578024), (168, 1521666), (186, 1374408), (189, 1352592), (202, 1265544), (216, 1183518), (217, 1178064), (243, 1052016), (248, 1030806), (252, 1014444), (279, 916272), (303, 843696), (324, 789012), (336, 760833), (372, 687204), (378, 676296), (404, 632772), (432, 591759), (434, 589032), (486, 526008), (496, 515403), (504, 507222), (558, 458136), (567, 450864), (606, 421848), (648, 394506), (651, 392688), (707, 361584), (729, 350672), (744, 343602), (756, 338148), (808, 316386), (837, 305424), (868, 294516), (909, 281232), (972, 263004), (1008, 253611), (1116, 229068), (1134, 225432), (1212, 210924), (1296, 197253), (1302, 196344), (1414, 180792), (1458, 175336), (1488, 171801), (1512, 169074), (1616, 158193), (1674, 152712), (1701, 150288), (1736, 147258), (1818, 140616), (1944, 131502), (1953, 130896), (2121, 120528), (2232, 114534), (2268, 112716), (2424, 105462), (2511, 101808), (2604, 98172), (2727, 93744), (2828, 90396), (2916, 87668), (3024, 84537), (3131, 81648), (3348, 76356), (3402, 75144), (3472, 73629), (3636, 70308), (3888, 65751), (3906, 65448), (4242, 60264), (4464, 57267), (4536, 56358), (4848, 52731), (5022, 50904), (5103, 50096), (5208, 49086), (5454, 46872), (5656, 45198), (5832, 43834), (5859, 43632), (6262, 40824), (6363, 40176), (6696, 38178), (6804, 37572), (7272, 35154), (7533, 33936), (7812, 32724), (8181, 31248), (8484, 30132), (9072, 28179), (9393, 27216), (10044, 25452), (10206, 25048), (10416, 24543), (10908, 23436), (11312, 22599), (11664, 21917), (11718, 21816), (12524, 20412), (12726, 20088), (13392, 19089), (13608, 18786), (14544, 17577), (15066, 16968), (15624, 16362)]