12542800

素因数分解:

$2^4\times 5^2\times {\mathrm{31357}}^1$

素因数の和:31375

約数の個数: 30

約数和(自身を含む): 30135038

約数和(自身を除く): 17592238

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31357, 62714, 125428, 156785, 250856, 313570, 501712, 627140, 783925, 1254280, 1567850, 2508560, 3135700, 6271400, 12542800]

約数ペア:

[(1, 12542800), (2, 6271400), (4, 3135700), (5, 2508560), (8, 1567850), (10, 1254280), (16, 783925), (20, 627140), (25, 501712), (40, 313570), (50, 250856), (80, 156785), (100, 125428), (200, 62714), (400, 31357)]