142905805

素因数分解:

$5^1\times 7^3\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 202176000

約数和(自身を除く): 59270195

約数列:

[1, 5, 7, 35, 49, 103, 245, 343, 515, 721, 809, 1715, 3605, 4045, 5047, 5663, 25235, 28315, 35329, 39641, 83327, 176645, 198205, 277487, 416635, 583289, 1387435, 2916445, 4083023, 20415115, 28581161, 142905805]

約数ペア:

[(1, 142905805), (5, 28581161), (7, 20415115), (35, 4083023), (49, 2916445), (103, 1387435), (245, 583289), (343, 416635), (515, 277487), (721, 198205), (809, 176645), (1715, 83327), (3605, 39641), (4045, 35329), (5047, 28315), (5663, 25235)]