1988045193520

素因数分解:

$2^4\times 5^1\times {\mathrm{12451}}^1\times {\mathrm{1995869}}^1$

素因数の和:2008333

約数の個数: 40

約数和(自身を含む): 4622578622640

約数和(自身を除く): 2634533429120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12451, 24902, 49804, 62255, 99608, 124510, 199216, 249020, 498040, 996080, 1995869, 3991738, 7983476, 9979345, 15966952, 19958690, 31933904, 39917380, 79834760, 159669520, 24850564919, 49701129838, 99402259676, 124252824595, 198804519352, 248505649190, 397609038704, 497011298380, 994022596760, 1988045193520]

約数ペア:

[(1, 1988045193520), (2, 994022596760), (4, 497011298380), (5, 397609038704), (8, 248505649190), (10, 198804519352), (16, 124252824595), (20, 99402259676), (40, 49701129838), (80, 24850564919), (12451, 159669520), (24902, 79834760), (49804, 39917380), (62255, 31933904), (99608, 19958690), (124510, 15966952), (199216, 9979345), (249020, 7983476), (498040, 3991738), (996080, 1995869)]