20136393460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{168449}}^1$

素因数の和:168640

約数の個数: 48

約数和(自身を含む): 43581384000

約数和(自身を除く): 23444990540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 215, 278, 430, 556, 695, 860, 1390, 2780, 5977, 11954, 23908, 29885, 59770, 119540, 168449, 336898, 673796, 842245, 1684490, 3368980, 7243307, 14486614, 23414411, 28973228, 36216535, 46828822, 72433070, 93657644, 117072055, 144866140, 234144110, 468288220, 1006819673, 2013639346, 4027278692, 5034098365, 10068196730, 20136393460]

約数ペア:

[(1, 20136393460), (2, 10068196730), (4, 5034098365), (5, 4027278692), (10, 2013639346), (20, 1006819673), (43, 468288220), (86, 234144110), (139, 144866140), (172, 117072055), (215, 93657644), (278, 72433070), (430, 46828822), (556, 36216535), (695, 28973228), (860, 23414411), (1390, 14486614), (2780, 7243307), (5977, 3368980), (11954, 1684490), (23908, 842245), (29885, 673796), (59770, 336898), (119540, 168449)]