1291213430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9932411}}^1$

素因数の和:9932431

約数の個数: 16

約数和(自身を含む): 2502967824

約数和(自身を除く): 1211754394

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 9932411, 19864822, 49662055, 99324110, 129121343, 258242686, 645606715, 1291213430]

約数ペア:

[(1, 1291213430), (2, 645606715), (5, 258242686), (10, 129121343), (13, 99324110), (26, 49662055), (65, 19864822), (130, 9932411)]