12400000025

素因数分解:

$5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{246889}}^1$

素因数の和:246954

約数の個数: 36

約数和(自身を含む): 18322694460

約数和(自身を除く): 5922694435

約数列:

[1, 5, 7, 25, 35, 41, 49, 175, 205, 245, 287, 1025, 1225, 1435, 2009, 7175, 10045, 50225, 246889, 1234445, 1728223, 6172225, 8641115, 10122449, 12097561, 43205575, 50612245, 60487805, 70857143, 253061225, 302439025, 354285715, 496000001, 1771428575, 2480000005, 12400000025]

約数ペア:

[(1, 12400000025), (5, 2480000005), (7, 1771428575), (25, 496000001), (35, 354285715), (41, 302439025), (49, 253061225), (175, 70857143), (205, 60487805), (245, 50612245), (287, 43205575), (1025, 12097561), (1225, 10122449), (1435, 8641115), (2009, 6172225), (7175, 1728223), (10045, 1234445), (50225, 246889)]