648225

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 36

約数和(自身を含む): 1205776

約数和(自身を除く): 557551

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 67, 75, 129, 201, 215, 225, 335, 387, 603, 645, 1005, 1075, 1675, 1935, 2881, 3015, 3225, 5025, 8643, 9675, 14405, 15075, 25929, 43215, 72025, 129645, 216075, 648225]

約数ペア:

[(1, 648225), (3, 216075), (5, 129645), (9, 72025), (15, 43215), (25, 25929), (43, 15075), (45, 14405), (67, 9675), (75, 8643), (129, 5025), (201, 3225), (215, 3015), (225, 2881), (335, 1935), (387, 1675), (603, 1075), (645, 1005)]