81280222

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{1987}}^1$

素因数の和:2283

約数の個数: 16

約数和(自身を含む): 123741072

約数和(自身を除く): 42460850

約数列:

[1, 2, 113, 181, 226, 362, 1987, 3974, 20453, 40906, 224531, 359647, 449062, 719294, 40640111, 81280222]

約数ペア:

[(1, 81280222), (2, 40640111), (113, 719294), (181, 449062), (226, 359647), (362, 224531), (1987, 40906), (3974, 20453)]