81269570

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{188999}}^1$

素因数の和:189049

約数の個数: 16

約数和(自身を含む): 149688000

約数和(自身を除く): 68418430

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 188999, 377998, 944995, 1889990, 8126957, 16253914, 40634785, 81269570]

約数ペア:

[(1, 81269570), (2, 40634785), (5, 16253914), (10, 8126957), (43, 1889990), (86, 944995), (215, 377998), (430, 188999)]