20206840

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2791}}^1$

素因数の和:2983

約数の個数: 32

約数和(自身を含む): 45732960

約数和(自身を除く): 25526120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2791, 3620, 5582, 7240, 11164, 13955, 22328, 27910, 55820, 111640, 505171, 1010342, 2020684, 2525855, 4041368, 5051710, 10103420, 20206840]

約数ペア:

[(1, 20206840), (2, 10103420), (4, 5051710), (5, 4041368), (8, 2525855), (10, 2020684), (20, 1010342), (40, 505171), (181, 111640), (362, 55820), (724, 27910), (905, 22328), (1448, 13955), (1810, 11164), (2791, 7240), (3620, 5582)]