67135780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{42491}}^1$

素因数の和:42579

約数の個数: 24

約数和(自身を含む): 142773120

約数和(自身を除く): 75637340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 42491, 84982, 169964, 212455, 424910, 849820, 3356789, 6713578, 13427156, 16783945, 33567890, 67135780]

約数ペア:

[(1, 67135780), (2, 33567890), (4, 16783945), (5, 13427156), (10, 6713578), (20, 3356789), (79, 849820), (158, 424910), (316, 212455), (395, 169964), (790, 84982), (1580, 42491)]