16396720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4999}}^1$

素因数の和:5053

約数の個数: 40

約数和(自身を含む): 39060000

約数和(自身を除く): 22663280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4999, 9998, 19996, 24995, 39992, 49990, 79984, 99980, 199960, 204959, 399920, 409918, 819836, 1024795, 1639672, 2049590, 3279344, 4099180, 8198360, 16396720]

約数ペア:

[(1, 16396720), (2, 8198360), (4, 4099180), (5, 3279344), (8, 2049590), (10, 1639672), (16, 1024795), (20, 819836), (40, 409918), (41, 399920), (80, 204959), (82, 199960), (164, 99980), (205, 79984), (328, 49990), (410, 39992), (656, 24995), (820, 19996), (1640, 9998), (3280, 4999)]