30916640

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{971}}^1$

素因数の和:1185

約数の個数: 48

約数和(自身を含む): 73483200

約数和(自身を除く): 42566560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 971, 995, 1592, 1942, 1990, 3184, 3884, 3980, 4855, 6368, 7768, 7960, 9710, 15536, 15920, 19420, 31072, 31840, 38840, 77680, 155360, 193229, 386458, 772916, 966145, 1545832, 1932290, 3091664, 3864580, 6183328, 7729160, 15458320, 30916640]

約数ペア:

[(1, 30916640), (2, 15458320), (4, 7729160), (5, 6183328), (8, 3864580), (10, 3091664), (16, 1932290), (20, 1545832), (32, 966145), (40, 772916), (80, 386458), (160, 193229), (199, 155360), (398, 77680), (796, 38840), (971, 31840), (995, 31072), (1592, 19420), (1942, 15920), (1990, 15536), (3184, 9710), (3884, 7960), (3980, 7768), (4855, 6368)]