20290771712

素因数分解:

$2^8\times {\mathrm{127}}^1\times {\mathrm{281}}^1\times {\mathrm{2221}}^1$

素因数の和:2645

約数の個数: 72

約数和(自身を含む): 40984914432

約数和(自身を除く): 20694142720

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 256, 281, 508, 562, 1016, 1124, 2032, 2221, 2248, 4064, 4442, 4496, 8128, 8884, 8992, 16256, 17768, 17984, 32512, 35536, 35687, 35968, 71072, 71374, 71936, 142144, 142748, 282067, 284288, 285496, 564134, 568576, 570992, 624101, 1128268, 1141984, 1248202, 2256536, 2283968, 2496404, 4513072, 4567936, 4992808, 9026144, 9135872, 9985616, 18052288, 19971232, 36104576, 39942464, 72209152, 79260827, 79884928, 158521654, 159769856, 317043308, 634086616, 1268173232, 2536346464, 5072692928, 10145385856, 20290771712]

約数ペア:

[(1, 20290771712), (2, 10145385856), (4, 5072692928), (8, 2536346464), (16, 1268173232), (32, 634086616), (64, 317043308), (127, 159769856), (128, 158521654), (254, 79884928), (256, 79260827), (281, 72209152), (508, 39942464), (562, 36104576), (1016, 19971232), (1124, 18052288), (2032, 9985616), (2221, 9135872), (2248, 9026144), (4064, 4992808), (4442, 4567936), (4496, 4513072), (8128, 2496404), (8884, 2283968), (8992, 2256536), (16256, 1248202), (17768, 1141984), (17984, 1128268), (32512, 624101), (35536, 570992), (35687, 568576), (35968, 564134), (71072, 285496), (71374, 284288), (71936, 282067), (142144, 142748)]