64803520

素因数分解:

$2^6\times 5^1\times {\mathrm{313}}^1\times {\mathrm{647}}^1$

素因数の和:977

約数の個数: 56

約数和(自身を含む): 155045664

約数和(自身を除く): 90242144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 313, 320, 626, 647, 1252, 1294, 1565, 2504, 2588, 3130, 3235, 5008, 5176, 6260, 6470, 10016, 10352, 12520, 12940, 20032, 20704, 25040, 25880, 41408, 50080, 51760, 100160, 103520, 202511, 207040, 405022, 810044, 1012555, 1620088, 2025110, 3240176, 4050220, 6480352, 8100440, 12960704, 16200880, 32401760, 64803520]

約数ペア:

[(1, 64803520), (2, 32401760), (4, 16200880), (5, 12960704), (8, 8100440), (10, 6480352), (16, 4050220), (20, 3240176), (32, 2025110), (40, 1620088), (64, 1012555), (80, 810044), (160, 405022), (313, 207040), (320, 202511), (626, 103520), (647, 100160), (1252, 51760), (1294, 50080), (1565, 41408), (2504, 25880), (2588, 25040), (3130, 20704), (3235, 20032), (5008, 12940), (5176, 12520), (6260, 10352), (6470, 10016)]