54742840

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1381}}^1$

素因数の和:2383

約数の個数: 32

約数和(自身を含む): 123384960

約数和(自身を除く): 68642120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1381, 1982, 2762, 3964, 4955, 5524, 6905, 7928, 9910, 11048, 13810, 19820, 27620, 39640, 55240, 1368571, 2737142, 5474284, 6842855, 10948568, 13685710, 27371420, 54742840]

約数ペア:

[(1, 54742840), (2, 27371420), (4, 13685710), (5, 10948568), (8, 6842855), (10, 5474284), (20, 2737142), (40, 1368571), (991, 55240), (1381, 39640), (1982, 27620), (2762, 19820), (3964, 13810), (4955, 11048), (5524, 9910), (6905, 7928)]