20889512

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 48816000

約数和(自身を除く): 27926488

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 56, 58, 76, 116, 133, 152, 203, 232, 266, 406, 532, 551, 677, 812, 1064, 1102, 1354, 1624, 2204, 2708, 3857, 4408, 4739, 5416, 7714, 9478, 12863, 15428, 18956, 19633, 25726, 30856, 37912, 39266, 51452, 78532, 90041, 102904, 137431, 157064, 180082, 274862, 360164, 373027, 549724, 720328, 746054, 1099448, 1492108, 2611189, 2984216, 5222378, 10444756, 20889512]

約数ペア:

[(1, 20889512), (2, 10444756), (4, 5222378), (7, 2984216), (8, 2611189), (14, 1492108), (19, 1099448), (28, 746054), (29, 720328), (38, 549724), (56, 373027), (58, 360164), (76, 274862), (116, 180082), (133, 157064), (152, 137431), (203, 102904), (232, 90041), (266, 78532), (406, 51452), (532, 39266), (551, 37912), (677, 30856), (812, 25726), (1064, 19633), (1102, 18956), (1354, 15428), (1624, 12863), (2204, 9478), (2708, 7714), (3857, 5416), (4408, 4739)]