215184385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1009}}^1$

素因数の和:1237

約数の個数: 32

約数和(自身を含む): 296261280

約数和(自身を除く): 81076895

約数列:

[1, 5, 13, 17, 65, 85, 193, 221, 965, 1009, 1105, 2509, 3281, 5045, 12545, 13117, 16405, 17153, 42653, 65585, 85765, 194737, 213265, 222989, 973685, 1114945, 2531581, 3310529, 12657905, 16552645, 43036877, 215184385]

約数ペア:

[(1, 215184385), (5, 43036877), (13, 16552645), (17, 12657905), (65, 3310529), (85, 2531581), (193, 1114945), (221, 973685), (965, 222989), (1009, 213265), (1105, 194737), (2509, 85765), (3281, 65585), (5045, 42653), (12545, 17153), (13117, 16405)]