218090020

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{60919}}^1$

素因数の和:61107

約数の個数: 24

約数和(自身を含む): 460555200

約数和(自身を除く): 242465180

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 60919, 121838, 243676, 304595, 609190, 1218380, 10904501, 21809002, 43618004, 54522505, 109045010, 218090020]

約数ペア:

[(1, 218090020), (2, 109045010), (4, 54522505), (5, 43618004), (10, 21809002), (20, 10904501), (179, 1218380), (358, 609190), (716, 304595), (895, 243676), (1790, 121838), (3580, 60919)]