81985150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{126131}}^1$

素因数の和:126156

約数の個数: 24

約数和(自身を含む): 164223864

約数和(自身を除く): 82238714

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 126131, 252262, 630655, 1261310, 1639703, 3153275, 3279406, 6306550, 8198515, 16397030, 40992575, 81985150]

約数ペア:

[(1, 81985150), (2, 40992575), (5, 16397030), (10, 8198515), (13, 6306550), (25, 3279406), (26, 3153275), (50, 1639703), (65, 1261310), (130, 630655), (325, 252262), (650, 126131)]