70142980

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3539}}^1$

素因数の和:4539

約数の個数: 24

約数和(自身を含む): 147490560

約数和(自身を除く): 77347580

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3539, 3964, 4955, 7078, 9910, 14156, 17695, 19820, 35390, 70780, 3507149, 7014298, 14028596, 17535745, 35071490, 70142980]

約数ペア:

[(1, 70142980), (2, 35071490), (4, 17535745), (5, 14028596), (10, 7014298), (20, 3507149), (991, 70780), (1982, 35390), (3539, 19820), (3964, 17695), (4955, 14156), (7078, 9910)]