72000560

素因数分解:

$2^4\times 5^1\times {\mathrm{900007}}^1$

素因数の和:900020

約数の個数: 20

約数和(自身を含む): 167401488

約数和(自身を除く): 95400928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 900007, 1800014, 3600028, 4500035, 7200056, 9000070, 14400112, 18000140, 36000280, 72000560]

約数ペア:

[(1, 72000560), (2, 36000280), (4, 18000140), (5, 14400112), (8, 9000070), (10, 7200056), (16, 4500035), (20, 3600028), (40, 1800014), (80, 900007)]