80766940

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{27103}}^1$

素因数の和:27261

約数の個数: 24

約数和(自身を含む): 170755200

約数和(自身を除く): 89988260

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 27103, 54206, 108412, 135515, 271030, 542060, 4038347, 8076694, 16153388, 20191735, 40383470, 80766940]

約数ペア:

[(1, 80766940), (2, 40383470), (4, 20191735), (5, 16153388), (10, 8076694), (20, 4038347), (149, 542060), (298, 271030), (596, 135515), (745, 108412), (1490, 54206), (2980, 27103)]