30991255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2447}}^1$

素因数の和:2618

約数の個数: 16

約数和(自身を含む): 39657600

約数和(自身を除く): 8666345

約数列:

[1, 5, 17, 85, 149, 745, 2447, 2533, 12235, 12665, 41599, 207995, 364603, 1823015, 6198251, 30991255]

約数ペア:

[(1, 30991255), (5, 6198251), (17, 1823015), (85, 364603), (149, 207995), (745, 41599), (2447, 12665), (2533, 12235)]