664551040

素因数分解:

$2^7\times 5^1\times {\mathrm{1019}}^2$

素因数の和:2057

約数の個数: 48

約数和(自身を含む): 1590252930

約数和(自身を除く): 925701890

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1019, 2038, 4076, 5095, 8152, 10190, 16304, 20380, 32608, 40760, 65216, 81520, 130432, 163040, 326080, 652160, 1038361, 2076722, 4153444, 5191805, 8306888, 10383610, 16613776, 20767220, 33227552, 41534440, 66455104, 83068880, 132910208, 166137760, 332275520, 664551040]

約数ペア:

[(1, 664551040), (2, 332275520), (4, 166137760), (5, 132910208), (8, 83068880), (10, 66455104), (16, 41534440), (20, 33227552), (32, 20767220), (40, 16613776), (64, 10383610), (80, 8306888), (128, 5191805), (160, 4153444), (320, 2076722), (640, 1038361), (1019, 652160), (2038, 326080), (4076, 163040), (5095, 130432), (8152, 81520), (10190, 65216), (16304, 40760), (20380, 32608)]