80448875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1656

約数の個数: 32

約数和(自身を含む): 111681024

約数和(自身を除く): 31232149

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 775, 1597, 1625, 2015, 3875, 7985, 10075, 20761, 39925, 49507, 50375, 103805, 199625, 247535, 519025, 643591, 1237675, 2595125, 3217955, 6188375, 16089775, 80448875]

約数ペア:

[(1, 80448875), (5, 16089775), (13, 6188375), (25, 3217955), (31, 2595125), (65, 1237675), (125, 643591), (155, 519025), (325, 247535), (403, 199625), (775, 103805), (1597, 50375), (1625, 49507), (2015, 39925), (3875, 20761), (7985, 10075)]