401570060

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 854112000

約数和(自身を除く): 452541940

約数列:

[1, 2, 4, 5, 10, 20, 163, 199, 326, 398, 619, 652, 796, 815, 995, 1238, 1630, 1990, 2476, 3095, 3260, 3980, 6190, 12380, 32437, 64874, 100897, 123181, 129748, 162185, 201794, 246362, 324370, 403588, 492724, 504485, 615905, 648740, 1008970, 1231810, 2017940, 2463620, 20078503, 40157006, 80314012, 100392515, 200785030, 401570060]

約数ペア:

[(1, 401570060), (2, 200785030), (4, 100392515), (5, 80314012), (10, 40157006), (20, 20078503), (163, 2463620), (199, 2017940), (326, 1231810), (398, 1008970), (619, 648740), (652, 615905), (796, 504485), (815, 492724), (995, 403588), (1238, 324370), (1630, 246362), (1990, 201794), (2476, 162185), (3095, 129748), (3260, 123181), (3980, 100897), (6190, 64874), (12380, 32437)]