245698340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{2437}}^1$

素因数の和:2588

約数の個数: 36

約数和(自身を含む): 523550748

約数和(自身を除く): 277852408

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 2437, 4874, 5041, 9748, 10082, 12185, 20164, 24370, 25205, 48740, 50410, 100820, 173027, 346054, 692108, 865135, 1730270, 3460540, 12284917, 24569834, 49139668, 61424585, 122849170, 245698340]

約数ペア:

[(1, 245698340), (2, 122849170), (4, 61424585), (5, 49139668), (10, 24569834), (20, 12284917), (71, 3460540), (142, 1730270), (284, 865135), (355, 692108), (710, 346054), (1420, 173027), (2437, 100820), (4874, 50410), (5041, 48740), (9748, 25205), (10082, 24370), (12185, 20164)]