20528625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{4211}}^1$

素因数の和:4242

約数の個数: 32

約数和(自身を含む): 36796032

約数和(自身を除く): 16267407

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 4211, 4875, 12633, 21055, 54743, 63165, 105275, 164229, 273715, 315825, 526375, 821145, 1368575, 1579125, 4105725, 6842875, 20528625]

約数ペア:

[(1, 20528625), (3, 6842875), (5, 4105725), (13, 1579125), (15, 1368575), (25, 821145), (39, 526375), (65, 315825), (75, 273715), (125, 164229), (195, 105275), (325, 63165), (375, 54743), (975, 21055), (1625, 12633), (4211, 4875)]