19374640

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1217}}^1$

素因数の和:1429

約数の個数: 40

約数和(自身を含む): 45309600

約数和(自身を除く): 25934960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1217, 1592, 1990, 2434, 3184, 3980, 4868, 6085, 7960, 9736, 12170, 15920, 19472, 24340, 48680, 97360, 242183, 484366, 968732, 1210915, 1937464, 2421830, 3874928, 4843660, 9687320, 19374640]

約数ペア:

[(1, 19374640), (2, 9687320), (4, 4843660), (5, 3874928), (8, 2421830), (10, 1937464), (16, 1210915), (20, 968732), (40, 484366), (80, 242183), (199, 97360), (398, 48680), (796, 24340), (995, 19472), (1217, 15920), (1592, 12170), (1990, 9736), (2434, 7960), (3184, 6085), (3980, 4868)]