219364240

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{19727}}^1$

素因数の和:19879

約数の個数: 40

約数和(自身を含む): 513717120

約数和(自身を除く): 294352880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 19727, 39454, 78908, 98635, 157816, 197270, 315632, 394540, 789080, 1578160, 2742053, 5484106, 10968212, 13710265, 21936424, 27420530, 43872848, 54841060, 109682120, 219364240]

約数ペア:

[(1, 219364240), (2, 109682120), (4, 54841060), (5, 43872848), (8, 27420530), (10, 21936424), (16, 13710265), (20, 10968212), (40, 5484106), (80, 2742053), (139, 1578160), (278, 789080), (556, 394540), (695, 315632), (1112, 197270), (1390, 157816), (2224, 98635), (2780, 78908), (5560, 39454), (11120, 19727)]