81158870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{48023}}^1$

素因数の和:48056

約数の個数: 24

約数和(自身を含む): 158191056

約数和(自身を除く): 77032186

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 48023, 96046, 240115, 480230, 624299, 1248598, 3121495, 6242990, 8115887, 16231774, 40579435, 81158870]

約数ペア:

[(1, 81158870), (2, 40579435), (5, 16231774), (10, 8115887), (13, 6242990), (26, 3121495), (65, 1248598), (130, 624299), (169, 480230), (338, 240115), (845, 96046), (1690, 48023)]