18883956140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{187081}}^1$

素因数の和:187207

約数の個数: 72

約数和(自身を含む): 46578928032

約数和(自身を除く): 27694971892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 980, 1030, 1442, 2060, 2884, 3605, 5047, 7210, 10094, 14420, 20188, 25235, 50470, 100940, 187081, 374162, 748324, 935405, 1309567, 1870810, 2619134, 3741620, 5238268, 6547835, 9166969, 13095670, 18333938, 19269343, 26191340, 36667876, 38538686, 45834845, 77077372, 91669690, 96346715, 134885401, 183339380, 192693430, 269770802, 385386860, 539541604, 674427005, 944197807, 1348854010, 1888395614, 2697708020, 3776791228, 4720989035, 9441978070, 18883956140]

約数ペア:

[(1, 18883956140), (2, 9441978070), (4, 4720989035), (5, 3776791228), (7, 2697708020), (10, 1888395614), (14, 1348854010), (20, 944197807), (28, 674427005), (35, 539541604), (49, 385386860), (70, 269770802), (98, 192693430), (103, 183339380), (140, 134885401), (196, 96346715), (206, 91669690), (245, 77077372), (412, 45834845), (490, 38538686), (515, 36667876), (721, 26191340), (980, 19269343), (1030, 18333938), (1442, 13095670), (2060, 9166969), (2884, 6547835), (3605, 5238268), (5047, 3741620), (7210, 2619134), (10094, 1870810), (14420, 1309567), (20188, 935405), (25235, 748324), (50470, 374162), (100940, 187081)]