68920340

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{4987}}^1$

素因数の和:5687

約数の個数: 24

約数和(自身を含む): 144971232

約数和(自身を除く): 76050892

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 4987, 6910, 9974, 13820, 19948, 24935, 49870, 99740, 3446017, 6892034, 13784068, 17230085, 34460170, 68920340]

約数ペア:

[(1, 68920340), (2, 34460170), (4, 17230085), (5, 13784068), (10, 6892034), (20, 3446017), (691, 99740), (1382, 49870), (2764, 24935), (3455, 19948), (4987, 13820), (6910, 9974)]