13620625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 40

約数和(自身を含む): 18993920

約数和(自身を除く): 5373295

約数列:

[1, 5, 19, 25, 31, 37, 95, 125, 155, 185, 475, 589, 625, 703, 775, 925, 1147, 2375, 2945, 3515, 3875, 4625, 5735, 11875, 14725, 17575, 19375, 21793, 23125, 28675, 73625, 87875, 108965, 143375, 368125, 439375, 544825, 716875, 2724125, 13620625]

約数ペア:

[(1, 13620625), (5, 2724125), (19, 716875), (25, 544825), (31, 439375), (37, 368125), (95, 143375), (125, 108965), (155, 87875), (185, 73625), (475, 28675), (589, 23125), (625, 21793), (703, 19375), (775, 17575), (925, 14725), (1147, 11875), (2375, 5735), (2945, 4625), (3515, 3875)]