261657980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{422029}}^1$

素因数の和:422069

約数の個数: 24

約数和(自身を含む): 567208320

約数和(自身を除く): 305550340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 422029, 844058, 1688116, 2110145, 4220290, 8440580, 13082899, 26165798, 52331596, 65414495, 130828990, 261657980]

約数ペア:

[(1, 261657980), (2, 130828990), (4, 65414495), (5, 52331596), (10, 26165798), (20, 13082899), (31, 8440580), (62, 4220290), (124, 2110145), (155, 1688116), (310, 844058), (620, 422029)]