9775280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1805

約数の個数: 40

約数和(自身を含む): 23061024

約数和(自身を除く): 13285744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 1721, 2840, 3442, 5680, 6884, 8605, 13768, 17210, 27536, 34420, 68840, 122191, 137680, 244382, 488764, 610955, 977528, 1221910, 1955056, 2443820, 4887640, 9775280]

約数ペア:

[(1, 9775280), (2, 4887640), (4, 2443820), (5, 1955056), (8, 1221910), (10, 977528), (16, 610955), (20, 488764), (40, 244382), (71, 137680), (80, 122191), (142, 68840), (284, 34420), (355, 27536), (568, 17210), (710, 13768), (1136, 8605), (1420, 6884), (1721, 5680), (2840, 3442)]