840105

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{127}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 1751040

約数和(自身を除く): 910935

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 127, 135, 147, 189, 245, 315, 381, 441, 635, 735, 889, 945, 1143, 1323, 1905, 2205, 2667, 3429, 4445, 5715, 6223, 6615, 8001, 13335, 17145, 18669, 24003, 31115, 40005, 56007, 93345, 120015, 168021, 280035, 840105]

約数ペア:

[(1, 840105), (3, 280035), (5, 168021), (7, 120015), (9, 93345), (15, 56007), (21, 40005), (27, 31115), (35, 24003), (45, 18669), (49, 17145), (63, 13335), (105, 8001), (127, 6615), (135, 6223), (147, 5715), (189, 4445), (245, 3429), (315, 2667), (381, 2205), (441, 1905), (635, 1323), (735, 1143), (889, 945)]