221645080

素因数分解:

$2^3\times 5^1\times {\mathrm{5541127}}^1$

素因数の和:5541138

約数の個数: 16

約数和(自身を含む): 498701520

約数和(自身を除く): 277056440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5541127, 11082254, 22164508, 27705635, 44329016, 55411270, 110822540, 221645080]

約数ペア:

[(1, 221645080), (2, 110822540), (4, 55411270), (5, 44329016), (8, 27705635), (10, 22164508), (20, 11082254), (40, 5541127)]