42878980

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{18973}}^1$

素因数の和:19095

約数の個数: 24

約数和(自身を含む): 90847512

約数和(自身を除く): 47968532

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 18973, 37946, 75892, 94865, 189730, 379460, 2143949, 4287898, 8575796, 10719745, 21439490, 42878980]

約数ペア:

[(1, 42878980), (2, 21439490), (4, 10719745), (5, 8575796), (10, 4287898), (20, 2143949), (113, 379460), (226, 189730), (452, 94865), (565, 75892), (1130, 37946), (2260, 18973)]