859624280

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{1367}}^1$

素因数の和:1656

約数の個数: 64

約数和(自身を含む): 1969920000

約数和(自身を除く): 1110295720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 199, 316, 395, 398, 632, 790, 796, 995, 1367, 1580, 1592, 1990, 2734, 3160, 3980, 5468, 6835, 7960, 10936, 13670, 15721, 27340, 31442, 54680, 62884, 78605, 107993, 125768, 157210, 215986, 272033, 314420, 431972, 539965, 544066, 628840, 863944, 1079930, 1088132, 1360165, 2159860, 2176264, 2720330, 4319720, 5440660, 10881320, 21490607, 42981214, 85962428, 107453035, 171924856, 214906070, 429812140, 859624280]

約数ペア:

[(1, 859624280), (2, 429812140), (4, 214906070), (5, 171924856), (8, 107453035), (10, 85962428), (20, 42981214), (40, 21490607), (79, 10881320), (158, 5440660), (199, 4319720), (316, 2720330), (395, 2176264), (398, 2159860), (632, 1360165), (790, 1088132), (796, 1079930), (995, 863944), (1367, 628840), (1580, 544066), (1592, 539965), (1990, 431972), (2734, 314420), (3160, 272033), (3980, 215986), (5468, 157210), (6835, 125768), (7960, 107993), (10936, 78605), (13670, 62884), (15721, 54680), (27340, 31442)]