180471508

素因数分解:

$2^2\times 7^3\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 370720000

約数和(自身を除く): 190248492

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 343, 398, 661, 686, 796, 1322, 1372, 1393, 2644, 2786, 4627, 5572, 9254, 9751, 18508, 19502, 32389, 39004, 64778, 68257, 129556, 131539, 136514, 226723, 263078, 273028, 453446, 526156, 906892, 920773, 1841546, 3683092, 6445411, 12890822, 25781644, 45117877, 90235754, 180471508]

約数ペア:

[(1, 180471508), (2, 90235754), (4, 45117877), (7, 25781644), (14, 12890822), (28, 6445411), (49, 3683092), (98, 1841546), (196, 920773), (199, 906892), (343, 526156), (398, 453446), (661, 273028), (686, 263078), (796, 226723), (1322, 136514), (1372, 131539), (1393, 129556), (2644, 68257), (2786, 64778), (4627, 39004), (5572, 32389), (9254, 19502), (9751, 18508)]