1998789728

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:221

約数の個数: 192

約数和(自身を含む): 4633251840

約数和(自身を除く): 2634462112

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 37, 52, 59, 62, 71, 74, 104, 118, 124, 142, 148, 208, 236, 248, 284, 296, 403, 416, 472, 481, 496, 568, 592, 767, 806, 923, 944, 962, 992, 1136, 1147, 1184, 1534, 1612, 1829, 1846, 1888, 1924, 2183, 2201, 2272, 2294, 2627, 3068, 3224, 3658, 3692, 3848, 4189, 4366, 4402, 4588, 5254, 6136, 6448, 7316, 7384, 7696, 8378, 8732, 8804, 9176, 10508, 12272, 12896, 14632, 14768, 14911, 15392, 16756, 17464, 17608, 18352, 21016, 23777, 24544, 28379, 28613, 29264, 29536, 29822, 33512, 34151, 34928, 35216, 36704, 42032, 47554, 54457, 56758, 57226, 58528, 59644, 67024, 67673, 68302, 69856, 70432, 81437, 84064, 95108, 108914, 113516, 114452, 119288, 129859, 134048, 135346, 136604, 154993, 162874, 190216, 217828, 227032, 228904, 238576, 259718, 270692, 273208, 309986, 325748, 380432, 435656, 454064, 457808, 477152, 519436, 541384, 546416, 619972, 651496, 760864, 871312, 879749, 908128, 915616, 1038872, 1058681, 1082768, 1092832, 1239944, 1302992, 1688167, 1742624, 1759498, 2014909, 2077744, 2117362, 2165536, 2479888, 2605984, 3376334, 3518996, 4029818, 4155488, 4234724, 4804783, 4959776, 6752668, 7037992, 8059636, 8469448, 9609566, 13505336, 14075984, 16119272, 16938896, 19219132, 27010672, 28151968, 32238544, 33877792, 38438264, 54021344, 62462179, 64477088, 76876528, 124924358, 153753056, 249848716, 499697432, 999394864, 1998789728]

約数ペア:

[(1, 1998789728), (2, 999394864), (4, 499697432), (8, 249848716), (13, 153753056), (16, 124924358), (26, 76876528), (31, 64477088), (32, 62462179), (37, 54021344), (52, 38438264), (59, 33877792), (62, 32238544), (71, 28151968), (74, 27010672), (104, 19219132), (118, 16938896), (124, 16119272), (142, 14075984), (148, 13505336), (208, 9609566), (236, 8469448), (248, 8059636), (284, 7037992), (296, 6752668), (403, 4959776), (416, 4804783), (472, 4234724), (481, 4155488), (496, 4029818), (568, 3518996), (592, 3376334), (767, 2605984), (806, 2479888), (923, 2165536), (944, 2117362), (962, 2077744), (992, 2014909), (1136, 1759498), (1147, 1742624), (1184, 1688167), (1534, 1302992), (1612, 1239944), (1829, 1092832), (1846, 1082768), (1888, 1058681), (1924, 1038872), (2183, 915616), (2201, 908128), (2272, 879749), (2294, 871312), (2627, 760864), (3068, 651496), (3224, 619972), (3658, 546416), (3692, 541384), (3848, 519436), (4189, 477152), (4366, 457808), (4402, 454064), (4588, 435656), (5254, 380432), (6136, 325748), (6448, 309986), (7316, 273208), (7384, 270692), (7696, 259718), (8378, 238576), (8732, 228904), (8804, 227032), (9176, 217828), (10508, 190216), (12272, 162874), (12896, 154993), (14632, 136604), (14768, 135346), (14911, 134048), (15392, 129859), (16756, 119288), (17464, 114452), (17608, 113516), (18352, 108914), (21016, 95108), (23777, 84064), (24544, 81437), (28379, 70432), (28613, 69856), (29264, 68302), (29536, 67673), (29822, 67024), (33512, 59644), (34151, 58528), (34928, 57226), (35216, 56758), (36704, 54457), (42032, 47554)]