199143530

素因数分解:

$2^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{30971}}^1$

素因数の和:31621

約数の個数: 16

約数和(自身を含む): 359027424

約数和(自身を除く): 159883894

約数列:

[1, 2, 5, 10, 643, 1286, 3215, 6430, 30971, 61942, 154855, 309710, 19914353, 39828706, 99571765, 199143530]

約数ペア:

[(1, 199143530), (2, 99571765), (5, 39828706), (10, 19914353), (643, 309710), (1286, 154855), (3215, 61942), (6430, 30971)]