19676720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:918

約数の個数: 80

約数和(自身を含む): 53621568

約数和(自身を除く): 33944848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 857, 1148, 1435, 1640, 1714, 2296, 2870, 3280, 3428, 4285, 4592, 5740, 5999, 6856, 8570, 11480, 11998, 13712, 17140, 22960, 23996, 29995, 34280, 35137, 47992, 59990, 68560, 70274, 95984, 119980, 140548, 175685, 239960, 245959, 281096, 351370, 479920, 491918, 562192, 702740, 983836, 1229795, 1405480, 1967672, 2459590, 2810960, 3935344, 4919180, 9838360, 19676720]

約数ペア:

[(1, 19676720), (2, 9838360), (4, 4919180), (5, 3935344), (7, 2810960), (8, 2459590), (10, 1967672), (14, 1405480), (16, 1229795), (20, 983836), (28, 702740), (35, 562192), (40, 491918), (41, 479920), (56, 351370), (70, 281096), (80, 245959), (82, 239960), (112, 175685), (140, 140548), (164, 119980), (205, 95984), (280, 70274), (287, 68560), (328, 59990), (410, 47992), (560, 35137), (574, 34280), (656, 29995), (820, 23996), (857, 22960), (1148, 17140), (1435, 13712), (1640, 11998), (1714, 11480), (2296, 8570), (2870, 6856), (3280, 5999), (3428, 5740), (4285, 4592)]