19550560

素因数分解:

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

素因数の和:1807

約数の個数: 48

約数和(自身を含む): 46865952

約数和(自身を除く): 27315392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1721, 2272, 2840, 3442, 5680, 6884, 8605, 11360, 13768, 17210, 27536, 34420, 55072, 68840, 122191, 137680, 244382, 275360, 488764, 610955, 977528, 1221910, 1955056, 2443820, 3910112, 4887640, 9775280, 19550560]

約数ペア:

[(1, 19550560), (2, 9775280), (4, 4887640), (5, 3910112), (8, 2443820), (10, 1955056), (16, 1221910), (20, 977528), (32, 610955), (40, 488764), (71, 275360), (80, 244382), (142, 137680), (160, 122191), (284, 68840), (355, 55072), (568, 34420), (710, 27536), (1136, 17210), (1420, 13768), (1721, 11360), (2272, 8605), (2840, 6884), (3442, 5680)]