258495280

素因数分解:

$2^4\times 5^1\times {\mathrm{3231191}}^1$

素因数の和:3231204

約数の個数: 20

約数和(自身を含む): 601001712

約数和(自身を除く): 342506432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3231191, 6462382, 12924764, 16155955, 25849528, 32311910, 51699056, 64623820, 129247640, 258495280]

約数ペア:

[(1, 258495280), (2, 129247640), (4, 64623820), (5, 51699056), (8, 32311910), (10, 25849528), (16, 16155955), (20, 12924764), (40, 6462382), (80, 3231191)]