9927220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6991}}^1$

素因数の和:7071

約数の個数: 24

約数和(自身を含む): 21143808

約数和(自身を除く): 11216588

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 6991, 13982, 27964, 34955, 69910, 139820, 496361, 992722, 1985444, 2481805, 4963610, 9927220]

約数ペア:

[(1, 9927220), (2, 4963610), (4, 2481805), (5, 1985444), (10, 992722), (20, 496361), (71, 139820), (142, 69910), (284, 34955), (355, 27964), (710, 13982), (1420, 6991)]