28430025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2243}}^1$

素因数の和:2282

約数の個数: 36

約数和(自身を含む): 50920848

約数和(自身を除く): 22490823

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 2243, 2535, 4225, 6729, 11215, 12675, 29159, 33645, 56075, 87477, 145795, 168225, 379067, 437385, 728975, 1137201, 1895335, 2186925, 5686005, 9476675, 28430025]

約数ペア:

[(1, 28430025), (3, 9476675), (5, 5686005), (13, 2186925), (15, 1895335), (25, 1137201), (39, 728975), (65, 437385), (75, 379067), (169, 168225), (195, 145795), (325, 87477), (507, 56075), (845, 33645), (975, 29159), (2243, 12675), (2535, 11215), (4225, 6729)]