20140225

素因数分解:

$5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:466

約数の個数: 36

約数和(自身を含む): 29834028

約数和(自身を除く): 9693803

約数列:

[1, 5, 7, 25, 35, 41, 49, 175, 205, 245, 287, 401, 1025, 1225, 1435, 2005, 2009, 2807, 7175, 10025, 10045, 14035, 16441, 19649, 50225, 70175, 82205, 98245, 115087, 411025, 491225, 575435, 805609, 2877175, 4028045, 20140225]

約数ペア:

[(1, 20140225), (5, 4028045), (7, 2877175), (25, 805609), (35, 575435), (41, 491225), (49, 411025), (175, 115087), (205, 98245), (245, 82205), (287, 70175), (401, 50225), (1025, 19649), (1225, 16441), (1435, 14035), (2005, 10045), (2009, 10025), (2807, 7175)]