648123776

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1999}}^1$

素因数の和:2179

約数の個数: 64

約数和(自身を含む): 1377000000

約数和(自身を除く): 728876224

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 149, 272, 298, 544, 596, 1088, 1192, 1999, 2176, 2384, 2533, 3998, 4768, 5066, 7996, 9536, 10132, 15992, 19072, 20264, 31984, 33983, 40528, 63968, 67966, 81056, 127936, 135932, 162112, 255872, 271864, 297851, 324224, 543728, 595702, 1087456, 1191404, 2174912, 2382808, 4349824, 4765616, 5063467, 9531232, 10126934, 19062464, 20253868, 38124928, 40507736, 81015472, 162030944, 324061888, 648123776]

約数ペア:

[(1, 648123776), (2, 324061888), (4, 162030944), (8, 81015472), (16, 40507736), (17, 38124928), (32, 20253868), (34, 19062464), (64, 10126934), (68, 9531232), (128, 5063467), (136, 4765616), (149, 4349824), (272, 2382808), (298, 2174912), (544, 1191404), (596, 1087456), (1088, 595702), (1192, 543728), (1999, 324224), (2176, 297851), (2384, 271864), (2533, 255872), (3998, 162112), (4768, 135932), (5066, 127936), (7996, 81056), (9536, 67966), (10132, 63968), (15992, 40528), (19072, 33983), (20264, 31984)]