7971425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 12749184

約数和(自身を除く): 4777759

約数列:

[1, 5, 7, 11, 25, 35, 41, 55, 77, 101, 175, 205, 275, 287, 385, 451, 505, 707, 1025, 1111, 1435, 1925, 2255, 2525, 3157, 3535, 4141, 5555, 7175, 7777, 11275, 15785, 17675, 20705, 27775, 28987, 38885, 45551, 78925, 103525, 144935, 194425, 227755, 318857, 724675, 1138775, 1594285, 7971425]

約数ペア:

[(1, 7971425), (5, 1594285), (7, 1138775), (11, 724675), (25, 318857), (35, 227755), (41, 194425), (55, 144935), (77, 103525), (101, 78925), (175, 45551), (205, 38885), (275, 28987), (287, 27775), (385, 20705), (451, 17675), (505, 15785), (707, 11275), (1025, 7777), (1111, 7175), (1435, 5555), (1925, 4141), (2255, 3535), (2525, 3157)]