71888020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1361}}^1$

素因数の和:1528

約数の個数: 48

約数和(自身を含む): 160171200

約数和(自身を除く): 88283180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1361, 1390, 2641, 2722, 2780, 5282, 5444, 6805, 10564, 13205, 13610, 25859, 26410, 27220, 51718, 52820, 103436, 129295, 189179, 258590, 378358, 517180, 756716, 945895, 1891790, 3594401, 3783580, 7188802, 14377604, 17972005, 35944010, 71888020]

約数ペア:

[(1, 71888020), (2, 35944010), (4, 17972005), (5, 14377604), (10, 7188802), (19, 3783580), (20, 3594401), (38, 1891790), (76, 945895), (95, 756716), (139, 517180), (190, 378358), (278, 258590), (380, 189179), (556, 129295), (695, 103436), (1361, 52820), (1390, 51718), (2641, 27220), (2722, 26410), (2780, 25859), (5282, 13610), (5444, 13205), (6805, 10564)]