840570140

素因数分解:

$2^2\times 5^1\times {\mathrm{1567}}^1\times {\mathrm{26821}}^1$

素因数の和:28397

約数の個数: 24

約数和(自身を含む): 1766389632

約数和(自身を除く): 925819492

約数列:

[1, 2, 4, 5, 10, 20, 1567, 3134, 6268, 7835, 15670, 26821, 31340, 53642, 107284, 134105, 268210, 536420, 42028507, 84057014, 168114028, 210142535, 420285070, 840570140]

約数ペア:

[(1, 840570140), (2, 420285070), (4, 210142535), (5, 168114028), (10, 84057014), (20, 42028507), (1567, 536420), (3134, 268210), (6268, 134105), (7835, 107284), (15670, 53642), (26821, 31340)]