16731280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5155

約数の個数: 40

約数和(自身を含む): 39856824

約数和(自身を除く): 23125544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5101, 10202, 20404, 25505, 40808, 51010, 81616, 102020, 204040, 209141, 408080, 418282, 836564, 1045705, 1673128, 2091410, 3346256, 4182820, 8365640, 16731280]

約数ペア:

[(1, 16731280), (2, 8365640), (4, 4182820), (5, 3346256), (8, 2091410), (10, 1673128), (16, 1045705), (20, 836564), (40, 418282), (41, 408080), (80, 209141), (82, 204040), (164, 102020), (205, 81616), (328, 51010), (410, 40808), (656, 25505), (820, 20404), (1640, 10202), (3280, 5101)]