30821180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{118543}}^1$

素因数の和:118565

約数の個数: 24

約数和(自身を含む): 69703872

約数和(自身を除く): 38882692

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 118543, 237086, 474172, 592715, 1185430, 1541059, 2370860, 3082118, 6164236, 7705295, 15410590, 30821180]

約数ペア:

[(1, 30821180), (2, 15410590), (4, 7705295), (5, 6164236), (10, 3082118), (13, 2370860), (20, 1541059), (26, 1185430), (52, 592715), (65, 474172), (130, 237086), (260, 118543)]