20832875

素因数分解:

$5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 30775680

約数和(自身を除く): 9942805

約数列:

[1, 5, 7, 25, 29, 35, 125, 145, 175, 203, 725, 821, 875, 1015, 3625, 4105, 5075, 5747, 20525, 23809, 25375, 28735, 102625, 119045, 143675, 166663, 595225, 718375, 833315, 2976125, 4166575, 20832875]

約数ペア:

[(1, 20832875), (5, 4166575), (7, 2976125), (25, 833315), (29, 718375), (35, 595225), (125, 166663), (145, 143675), (175, 119045), (203, 102625), (725, 28735), (821, 25375), (875, 23809), (1015, 20525), (3625, 5747), (4105, 5075)]