208028720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{136861}}^1$

素因数の和:136893

約数の個数: 40

約数和(自身を含む): 509126640

約数和(自身を除く): 301097920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 136861, 273722, 547444, 684305, 1094888, 1368610, 2189776, 2600359, 2737220, 5200718, 5474440, 10401436, 10948880, 13001795, 20802872, 26003590, 41605744, 52007180, 104014360, 208028720]

約数ペア:

[(1, 208028720), (2, 104014360), (4, 52007180), (5, 41605744), (8, 26003590), (10, 20802872), (16, 13001795), (19, 10948880), (20, 10401436), (38, 5474440), (40, 5200718), (76, 2737220), (80, 2600359), (95, 2189776), (152, 1368610), (190, 1094888), (304, 684305), (380, 547444), (760, 273722), (1520, 136861)]