251615120

素因数分解:

$2^4\times 5^1\times {\mathrm{3145189}}^1$

素因数の和:3145202

約数の個数: 20

約数和(自身を含む): 585005340

約数和(自身を除く): 333390220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3145189, 6290378, 12580756, 15725945, 25161512, 31451890, 50323024, 62903780, 125807560, 251615120]

約数ペア:

[(1, 251615120), (2, 125807560), (4, 62903780), (5, 50323024), (8, 31451890), (10, 25161512), (16, 15725945), (20, 12580756), (40, 6290378), (80, 3145189)]