641502016

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{22937}}^1$

素因数の和:22991

約数の個数: 56

約数和(自身を含む): 1398300480

約数和(自身を除く): 756798464

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 152, 184, 304, 368, 437, 608, 736, 874, 1216, 1472, 1748, 3496, 6992, 13984, 22937, 27968, 45874, 91748, 183496, 366992, 435803, 527551, 733984, 871606, 1055102, 1467968, 1743212, 2110204, 3486424, 4220408, 6972848, 8440816, 10023469, 13945696, 16881632, 20046938, 27891392, 33763264, 40093876, 80187752, 160375504, 320751008, 641502016]

約数ペア:

[(1, 641502016), (2, 320751008), (4, 160375504), (8, 80187752), (16, 40093876), (19, 33763264), (23, 27891392), (32, 20046938), (38, 16881632), (46, 13945696), (64, 10023469), (76, 8440816), (92, 6972848), (152, 4220408), (184, 3486424), (304, 2110204), (368, 1743212), (437, 1467968), (608, 1055102), (736, 871606), (874, 733984), (1216, 527551), (1472, 435803), (1748, 366992), (3496, 183496), (6992, 91748), (13984, 45874), (22937, 27968)]