664350040

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{36343}}^1$

素因数の和:36811

約数の個数: 32

約数和(自身を含む): 1498099680

約数和(自身を除く): 833749640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4570, 9140, 18280, 36343, 72686, 145372, 181715, 290744, 363430, 726860, 1453720, 16608751, 33217502, 66435004, 83043755, 132870008, 166087510, 332175020, 664350040]

約数ペア:

[(1, 664350040), (2, 332175020), (4, 166087510), (5, 132870008), (8, 83043755), (10, 66435004), (20, 33217502), (40, 16608751), (457, 1453720), (914, 726860), (1828, 363430), (2285, 290744), (3656, 181715), (4570, 145372), (9140, 72686), (18280, 36343)]