409046980

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{20071}}^1$

素因数の和:21099

約数の個数: 24

約数和(自身を含む): 859884480

約数和(自身を除く): 450837500

約数列:

[1, 2, 4, 5, 10, 20, 1019, 2038, 4076, 5095, 10190, 20071, 20380, 40142, 80284, 100355, 200710, 401420, 20452349, 40904698, 81809396, 102261745, 204523490, 409046980]

約数ペア:

[(1, 409046980), (2, 204523490), (4, 102261745), (5, 81809396), (10, 40904698), (20, 20452349), (1019, 401420), (2038, 200710), (4076, 100355), (5095, 80284), (10190, 40142), (20071, 20380)]