18502725

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 32497920

約数和(自身を除く): 13995195

約数列:

[1, 3, 5, 15, 25, 29, 47, 75, 87, 141, 145, 181, 235, 435, 543, 705, 725, 905, 1175, 1363, 2175, 2715, 3525, 4089, 4525, 5249, 6815, 8507, 13575, 15747, 20445, 25521, 26245, 34075, 42535, 78735, 102225, 127605, 131225, 212675, 246703, 393675, 638025, 740109, 1233515, 3700545, 6167575, 18502725]

約数ペア:

[(1, 18502725), (3, 6167575), (5, 3700545), (15, 1233515), (25, 740109), (29, 638025), (47, 393675), (75, 246703), (87, 212675), (141, 131225), (145, 127605), (181, 102225), (235, 78735), (435, 42535), (543, 34075), (705, 26245), (725, 25521), (905, 20445), (1175, 15747), (1363, 13575), (2175, 8507), (2715, 6815), (3525, 5249), (4089, 4525)]