27981460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107621}}^1$

素因数の和:107643

約数の個数: 24

約数和(自身を含む): 63281736

約数和(自身を除く): 35300276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 107621, 215242, 430484, 538105, 1076210, 1399073, 2152420, 2798146, 5596292, 6995365, 13990730, 27981460]

約数ペア:

[(1, 27981460), (2, 13990730), (4, 6995365), (5, 5596292), (10, 2798146), (13, 2152420), (20, 1399073), (26, 1076210), (52, 538105), (65, 430484), (130, 215242), (260, 107621)]