31979690

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8221}}^1$

素因数の和:8617

約数の個数: 16

約数和(自身を含む): 57718440

約数和(自身を除く): 25738750

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 8221, 16442, 41105, 82210, 3197969, 6395938, 15989845, 31979690]

約数ペア:

[(1, 31979690), (2, 15989845), (5, 6395938), (10, 3197969), (389, 82210), (778, 41105), (1945, 16442), (3890, 8221)]