127641640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{455863}}^1$

素因数の和:455881

約数の個数: 32

約数和(自身を含む): 328222080

約数和(自身を除く): 200580440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 455863, 911726, 1823452, 2279315, 3191041, 3646904, 4558630, 6382082, 9117260, 12764164, 15955205, 18234520, 25528328, 31910410, 63820820, 127641640]

約数ペア:

[(1, 127641640), (2, 63820820), (4, 31910410), (5, 25528328), (7, 18234520), (8, 15955205), (10, 12764164), (14, 9117260), (20, 6382082), (28, 4558630), (35, 3646904), (40, 3191041), (56, 2279315), (70, 1823452), (140, 911726), (280, 455863)]