18043875

素因数分解:

$3^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 48

約数和(自身を含む): 33372768

約数和(自身を除く): 15328893

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 215, 225, 373, 375, 387, 645, 1075, 1119, 1125, 1865, 1935, 3225, 3357, 5375, 5595, 9325, 9675, 16039, 16125, 16785, 27975, 46625, 48117, 48375, 80195, 83925, 139875, 144351, 240585, 400975, 419625, 721755, 1202925, 2004875, 3608775, 6014625, 18043875]

約数ペア:

[(1, 18043875), (3, 6014625), (5, 3608775), (9, 2004875), (15, 1202925), (25, 721755), (43, 419625), (45, 400975), (75, 240585), (125, 144351), (129, 139875), (215, 83925), (225, 80195), (373, 48375), (375, 48117), (387, 46625), (645, 27975), (1075, 16785), (1119, 16125), (1125, 16039), (1865, 9675), (1935, 9325), (3225, 5595), (3357, 5375)]