28576725

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{8861}}^1$

素因数の和:8917

約数の個数: 24

約数和(自身を含む): 48351072

約数和(自身を除く): 19774347

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 8861, 26583, 44305, 132915, 221525, 381023, 664575, 1143069, 1905115, 5715345, 9525575, 28576725]

約数ペア:

[(1, 28576725), (3, 9525575), (5, 5715345), (15, 1905115), (25, 1143069), (43, 664575), (75, 381023), (129, 221525), (215, 132915), (645, 44305), (1075, 26583), (3225, 8861)]