1289752990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3145739}}^1$

素因数の和:3145787

約数の個数: 16

約数和(自身を含む): 2378179440

約数和(自身を除く): 1088426450

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 3145739, 6291478, 15728695, 31457390, 128975299, 257950598, 644876495, 1289752990]

約数ペア:

[(1, 1289752990), (2, 644876495), (5, 257950598), (10, 128975299), (41, 31457390), (82, 15728695), (205, 6291478), (410, 3145739)]