19653760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:174

約数の個数: 128

約数和(自身を含む): 55520640

約数和(自身を除く): 35866880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 107, 112, 128, 140, 160, 164, 205, 214, 224, 280, 287, 320, 328, 410, 428, 448, 535, 560, 574, 640, 656, 749, 820, 856, 896, 1070, 1120, 1148, 1312, 1435, 1498, 1640, 1712, 2140, 2240, 2296, 2624, 2870, 2996, 3280, 3424, 3745, 4280, 4387, 4480, 4592, 5248, 5740, 5992, 6560, 6848, 7490, 8560, 8774, 9184, 11480, 11984, 13120, 13696, 14980, 17120, 17548, 18368, 21935, 22960, 23968, 26240, 29960, 30709, 34240, 35096, 36736, 43870, 45920, 47936, 59920, 61418, 68480, 70192, 87740, 91840, 95872, 119840, 122836, 140384, 153545, 175480, 183680, 239680, 245672, 280768, 307090, 350960, 479360, 491344, 561536, 614180, 701920, 982688, 1228360, 1403840, 1965376, 2456720, 2807680, 3930752, 4913440, 9826880, 19653760]

約数ペア:

[(1, 19653760), (2, 9826880), (4, 4913440), (5, 3930752), (7, 2807680), (8, 2456720), (10, 1965376), (14, 1403840), (16, 1228360), (20, 982688), (28, 701920), (32, 614180), (35, 561536), (40, 491344), (41, 479360), (56, 350960), (64, 307090), (70, 280768), (80, 245672), (82, 239680), (107, 183680), (112, 175480), (128, 153545), (140, 140384), (160, 122836), (164, 119840), (205, 95872), (214, 91840), (224, 87740), (280, 70192), (287, 68480), (320, 61418), (328, 59920), (410, 47936), (428, 45920), (448, 43870), (535, 36736), (560, 35096), (574, 34240), (640, 30709), (656, 29960), (749, 26240), (820, 23968), (856, 22960), (896, 21935), (1070, 18368), (1120, 17548), (1148, 17120), (1312, 14980), (1435, 13696), (1498, 13120), (1640, 11984), (1712, 11480), (2140, 9184), (2240, 8774), (2296, 8560), (2624, 7490), (2870, 6848), (2996, 6560), (3280, 5992), (3424, 5740), (3745, 5248), (4280, 4592), (4387, 4480)]