40687660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156491}}^1$

素因数の和:156513

約数の個数: 24

約数和(自身を含む): 92017296

約数和(自身を除く): 51329636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 156491, 312982, 625964, 782455, 1564910, 2034383, 3129820, 4068766, 8137532, 10171915, 20343830, 40687660]

約数ペア:

[(1, 40687660), (2, 20343830), (4, 10171915), (5, 8137532), (10, 4068766), (13, 3129820), (20, 2034383), (26, 1564910), (52, 782455), (65, 625964), (130, 312982), (260, 156491)]