20052225

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:567

約数の個数: 48

約数和(自身を含む): 37517440

約数和(自身を除く): 17465215

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 487, 549, 675, 915, 1461, 1525, 1647, 2435, 2745, 4383, 4575, 7305, 8235, 12175, 13149, 13725, 21915, 29707, 36525, 41175, 65745, 89121, 109575, 148535, 267363, 328725, 445605, 742675, 802089, 1336815, 2228025, 4010445, 6684075, 20052225]

約数ペア:

[(1, 20052225), (3, 6684075), (5, 4010445), (9, 2228025), (15, 1336815), (25, 802089), (27, 742675), (45, 445605), (61, 328725), (75, 267363), (135, 148535), (183, 109575), (225, 89121), (305, 65745), (487, 41175), (549, 36525), (675, 29707), (915, 21915), (1461, 13725), (1525, 13149), (1647, 12175), (2435, 8235), (2745, 7305), (4383, 4575)]