13378225

素因数分解:

$5^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 19705584

約数和(自身を除く): 6327359

約数列:

[1, 5, 7, 25, 35, 49, 67, 163, 175, 245, 335, 469, 815, 1141, 1225, 1675, 2345, 3283, 4075, 5705, 7987, 10921, 11725, 16415, 28525, 39935, 54605, 76447, 82075, 199675, 273025, 382235, 535129, 1911175, 2675645, 13378225]

約数ペア:

[(1, 13378225), (5, 2675645), (7, 1911175), (25, 535129), (35, 382235), (49, 273025), (67, 199675), (163, 82075), (175, 76447), (245, 54605), (335, 39935), (469, 28525), (815, 16415), (1141, 11725), (1225, 10921), (1675, 7987), (2345, 5705), (3283, 4075)]