18204075

素因数分解:

$3^3\times 5^2\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 33852000

約数和(自身を除く): 15647925

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 149, 181, 225, 447, 543, 675, 745, 905, 1341, 1629, 2235, 2715, 3725, 4023, 4525, 4887, 6705, 8145, 11175, 13575, 20115, 24435, 26969, 33525, 40725, 80907, 100575, 122175, 134845, 242721, 404535, 674225, 728163, 1213605, 2022675, 3640815, 6068025, 18204075]

約数ペア:

[(1, 18204075), (3, 6068025), (5, 3640815), (9, 2022675), (15, 1213605), (25, 728163), (27, 674225), (45, 404535), (75, 242721), (135, 134845), (149, 122175), (181, 100575), (225, 80907), (447, 40725), (543, 33525), (675, 26969), (745, 24435), (905, 20115), (1341, 13575), (1629, 11175), (2235, 8145), (2715, 6705), (3725, 4887), (4023, 4525)]