28506075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{173}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 51350880

約数和(自身を除く): 22844805

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 173, 195, 325, 507, 519, 845, 865, 975, 2197, 2249, 2535, 2595, 4225, 4325, 6591, 6747, 10985, 11245, 12675, 12975, 29237, 32955, 33735, 54925, 56225, 87711, 146185, 164775, 168675, 380081, 438555, 730925, 1140243, 1900405, 2192775, 5701215, 9502025, 28506075]

約数ペア:

[(1, 28506075), (3, 9502025), (5, 5701215), (13, 2192775), (15, 1900405), (25, 1140243), (39, 730925), (65, 438555), (75, 380081), (169, 168675), (173, 164775), (195, 146185), (325, 87711), (507, 56225), (519, 54925), (845, 33735), (865, 32955), (975, 29237), (2197, 12975), (2249, 12675), (2535, 11245), (2595, 10985), (4225, 6747), (4325, 6591)]