419213660

素因数分解:

$2^2\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{9781}}^1$

素因数の和:11933

約数の個数: 24

約数和(自身を含む): 880849536

約数和(自身を除く): 461635876

約数列:

[1, 2, 4, 5, 10, 20, 2143, 4286, 8572, 9781, 10715, 19562, 21430, 39124, 42860, 48905, 97810, 195620, 20960683, 41921366, 83842732, 104803415, 209606830, 419213660]

約数ペア:

[(1, 419213660), (2, 209606830), (4, 104803415), (5, 83842732), (10, 41921366), (20, 20960683), (2143, 195620), (4286, 97810), (8572, 48905), (9781, 42860), (10715, 39124), (19562, 21430)]