28753425

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2719}}^1$

素因数の和:2782

約数の個数: 36

約数和(自身を含む): 52615680

約数和(自身を除く): 23862255

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 2115, 2719, 3525, 8157, 10575, 13595, 24471, 40785, 67975, 122355, 127793, 203925, 383379, 611775, 638965, 1150137, 1916895, 3194825, 5750685, 9584475, 28753425]

約数ペア:

[(1, 28753425), (3, 9584475), (5, 5750685), (9, 3194825), (15, 1916895), (25, 1150137), (45, 638965), (47, 611775), (75, 383379), (141, 203925), (225, 127793), (235, 122355), (423, 67975), (705, 40785), (1175, 24471), (2115, 13595), (2719, 10575), (3525, 8157)]