20180643920

素因数分解:

$2^4\times 5^1\times {\mathrm{593}}^1\times {\mathrm{425393}}^1$

素因数の和:425999

約数の個数: 40

約数和(自身を含む): 46999230696

約数和(自身を除く): 26818586776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 593, 1186, 2372, 2965, 4744, 5930, 9488, 11860, 23720, 47440, 425393, 850786, 1701572, 2126965, 3403144, 4253930, 6806288, 8507860, 17015720, 34031440, 252258049, 504516098, 1009032196, 1261290245, 2018064392, 2522580490, 4036128784, 5045160980, 10090321960, 20180643920]

約数ペア:

[(1, 20180643920), (2, 10090321960), (4, 5045160980), (5, 4036128784), (8, 2522580490), (10, 2018064392), (16, 1261290245), (20, 1009032196), (40, 504516098), (80, 252258049), (593, 34031440), (1186, 17015720), (2372, 8507860), (2965, 6806288), (4744, 4253930), (5930, 3403144), (9488, 2126965), (11860, 1701572), (23720, 850786), (47440, 425393)]