2197788680

素因数分解:

$2^3\times 5^1\times {\mathrm{54944717}}^1$

素因数の和:54944728

約数の個数: 16

約数和(自身を含む): 4945024620

約数和(自身を除く): 2747235940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 54944717, 109889434, 219778868, 274723585, 439557736, 549447170, 1098894340, 2197788680]

約数ペア:

[(1, 2197788680), (2, 1098894340), (4, 549447170), (5, 439557736), (8, 274723585), (10, 219778868), (20, 109889434), (40, 54944717)]