13157020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21221}}^1$

素因数の和:21261

約数の個数: 24

約数和(自身を含む): 28522368

約数和(自身を除く): 15365348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21221, 42442, 84884, 106105, 212210, 424420, 657851, 1315702, 2631404, 3289255, 6578510, 13157020]

約数ペア:

[(1, 13157020), (2, 6578510), (4, 3289255), (5, 2631404), (10, 1315702), (20, 657851), (31, 424420), (62, 212210), (124, 106105), (155, 84884), (310, 42442), (620, 21221)]