30991490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{281}}^1$

素因数の和:598

約数の個数: 32

約数和(自身を含む): 57561840

約数和(自身を除く): 26570350

約数列:

[1, 2, 5, 10, 41, 82, 205, 269, 281, 410, 538, 562, 1345, 1405, 2690, 2810, 11029, 11521, 22058, 23042, 55145, 57605, 75589, 110290, 115210, 151178, 377945, 755890, 3099149, 6198298, 15495745, 30991490]

約数ペア:

[(1, 30991490), (2, 15495745), (5, 6198298), (10, 3099149), (41, 755890), (82, 377945), (205, 151178), (269, 115210), (281, 110290), (410, 75589), (538, 57605), (562, 55145), (1345, 23042), (1405, 22058), (2690, 11521), (2810, 11029)]