31911230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245471}}^1$

素因数の和:245491

約数の個数: 16

約数和(自身を含む): 61858944

約数和(自身を除く): 29947714

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 245471, 490942, 1227355, 2454710, 3191123, 6382246, 15955615, 31911230]

約数ペア:

[(1, 31911230), (2, 15955615), (5, 6382246), (10, 3191123), (13, 2454710), (26, 1227355), (65, 490942), (130, 245471)]