25211090

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{6481}}^1$

素因数の和:6877

約数の個数: 16

約数和(自身を含む): 45503640

約数和(自身を除く): 20292550

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 6481, 12962, 32405, 64810, 2521109, 5042218, 12605545, 25211090]

約数ペア:

[(1, 25211090), (2, 12605545), (5, 5042218), (10, 2521109), (389, 64810), (778, 32405), (1945, 12962), (3890, 6481)]