20266120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72379}}^1$

素因数の和:72397

約数の個数: 32

約数和(自身を含む): 52113600

約数和(自身を除く): 31847480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72379, 144758, 289516, 361895, 506653, 579032, 723790, 1013306, 1447580, 2026612, 2533265, 2895160, 4053224, 5066530, 10133060, 20266120]

約数ペア:

[(1, 20266120), (2, 10133060), (4, 5066530), (5, 4053224), (7, 2895160), (8, 2533265), (10, 2026612), (14, 1447580), (20, 1013306), (28, 723790), (35, 579032), (40, 506653), (56, 361895), (70, 289516), (140, 144758), (280, 72379)]