766389620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{539711}}^1$

素因数の和:539791

約数の個数: 24

約数和(自身を含む): 1632089088

約数和(自身を除く): 865699468

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 539711, 1079422, 2158844, 2698555, 5397110, 10794220, 38319481, 76638962, 153277924, 191597405, 383194810, 766389620]

約数ペア:

[(1, 766389620), (2, 383194810), (4, 191597405), (5, 153277924), (10, 76638962), (20, 38319481), (71, 10794220), (142, 5397110), (284, 2698555), (355, 2158844), (710, 1079422), (1420, 539711)]