68680520

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2801}}^1$

素因数の和:3425

約数の個数: 32

約数和(自身を含む): 154838520

約数和(自身を除く): 86158000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 2801, 3065, 4904, 5602, 6130, 11204, 12260, 14005, 22408, 24520, 28010, 56020, 112040, 1717013, 3434026, 6868052, 8585065, 13736104, 17170130, 34340260, 68680520]

約数ペア:

[(1, 68680520), (2, 34340260), (4, 17170130), (5, 13736104), (8, 8585065), (10, 6868052), (20, 3434026), (40, 1717013), (613, 112040), (1226, 56020), (2452, 28010), (2801, 24520), (3065, 22408), (4904, 14005), (5602, 12260), (6130, 11204)]