129680710

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{20231}}^1$

素因数の和:20879

約数の個数: 16

約数和(自身を含む): 233800992

約数和(自身を除く): 104120282

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 20231, 40462, 101155, 202310, 12968071, 25936142, 64840355, 129680710]

約数ペア:

[(1, 129680710), (2, 64840355), (5, 25936142), (10, 12968071), (641, 202310), (1282, 101155), (3205, 40462), (6410, 20231)]