1008894020

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{112349}}^1$

素因数の和:112807

約数の個数: 24

約数和(自身を含む): 2123415000

約数和(自身を除く): 1114520980

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8980, 112349, 224698, 449396, 561745, 1123490, 2246980, 50444701, 100889402, 201778804, 252223505, 504447010, 1008894020]

約数ペア:

[(1, 1008894020), (2, 504447010), (4, 252223505), (5, 201778804), (10, 100889402), (20, 50444701), (449, 2246980), (898, 1123490), (1796, 561745), (2245, 449396), (4490, 224698), (8980, 112349)]