1209075

素因数分解:

$3^1\times 5^2\times 7^3\times {\mathrm{47}}^1$

素因数の和:81

約数の個数: 48

約数和(自身を含む): 2380800

約数和(自身を除く): 1171725

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 47, 49, 75, 105, 141, 147, 175, 235, 245, 329, 343, 525, 705, 735, 987, 1029, 1175, 1225, 1645, 1715, 2303, 3525, 3675, 4935, 5145, 6909, 8225, 8575, 11515, 16121, 24675, 25725, 34545, 48363, 57575, 80605, 172725, 241815, 403025, 1209075]

約数ペア:

[(1, 1209075), (3, 403025), (5, 241815), (7, 172725), (15, 80605), (21, 57575), (25, 48363), (35, 34545), (47, 25725), (49, 24675), (75, 16121), (105, 11515), (141, 8575), (147, 8225), (175, 6909), (235, 5145), (245, 4935), (329, 3675), (343, 3525), (525, 2303), (705, 1715), (735, 1645), (987, 1225), (1029, 1175)]