320427778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 531360000

約数和(自身を除く): 210932222

約数列:

[1, 2, 11, 22, 149, 239, 298, 409, 478, 818, 1639, 2629, 3278, 4499, 5258, 8998, 35611, 60941, 71222, 97751, 121882, 195502, 391721, 670351, 783442, 1075261, 1340702, 2150522, 14564899, 29129798, 160213889, 320427778]

約数ペア:

[(1, 320427778), (2, 160213889), (11, 29129798), (22, 14564899), (149, 2150522), (239, 1340702), (298, 1075261), (409, 783442), (478, 670351), (818, 391721), (1639, 195502), (2629, 121882), (3278, 97751), (4499, 71222), (5258, 60941), (8998, 35611)]