627689984

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 1315201536

約数和(自身を除く): 687511552

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 128, 142, 248, 256, 284, 496, 512, 557, 568, 992, 1114, 1136, 1984, 2201, 2228, 2272, 3968, 4402, 4456, 4544, 7936, 8804, 8912, 9088, 15872, 17267, 17608, 17824, 18176, 34534, 35216, 35648, 36352, 39547, 69068, 70432, 71296, 79094, 138136, 140864, 142592, 158188, 276272, 281728, 285184, 316376, 552544, 563456, 632752, 1105088, 1126912, 1225957, 1265504, 2210176, 2451914, 2531008, 4420352, 4903828, 5062016, 8840704, 9807656, 10124032, 19615312, 20248064, 39230624, 78461248, 156922496, 313844992, 627689984]

約数ペア:

[(1, 627689984), (2, 313844992), (4, 156922496), (8, 78461248), (16, 39230624), (31, 20248064), (32, 19615312), (62, 10124032), (64, 9807656), (71, 8840704), (124, 5062016), (128, 4903828), (142, 4420352), (248, 2531008), (256, 2451914), (284, 2210176), (496, 1265504), (512, 1225957), (557, 1126912), (568, 1105088), (992, 632752), (1114, 563456), (1136, 552544), (1984, 316376), (2201, 285184), (2228, 281728), (2272, 276272), (3968, 158188), (4402, 142592), (4456, 140864), (4544, 138136), (7936, 79094), (8804, 71296), (8912, 70432), (9088, 69068), (15872, 39547), (17267, 36352), (17608, 35648), (17824, 35216), (18176, 34534)]