19783970

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^2\times {\mathrm{317}}^1$

素因数の和:482

約数の個数: 24

約数和(自身を含む): 36181404

約数和(自身を除く): 16397434

約数列:

[1, 2, 5, 10, 79, 158, 317, 395, 634, 790, 1585, 3170, 6241, 12482, 25043, 31205, 50086, 62410, 125215, 250430, 1978397, 3956794, 9891985, 19783970]

約数ペア:

[(1, 19783970), (2, 9891985), (5, 3956794), (10, 1978397), (79, 250430), (158, 125215), (317, 62410), (395, 50086), (634, 31205), (790, 25043), (1585, 12482), (3170, 6241)]