25128142

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 43394400

約数和(自身を除く): 18266258

約数列:

[1, 2, 13, 17, 26, 34, 139, 221, 278, 409, 442, 818, 1807, 2363, 3614, 4726, 5317, 6953, 10634, 13906, 30719, 56851, 61438, 90389, 113702, 180778, 739063, 966467, 1478126, 1932934, 12564071, 25128142]

約数ペア:

[(1, 25128142), (2, 12564071), (13, 1932934), (17, 1478126), (26, 966467), (34, 739063), (139, 180778), (221, 113702), (278, 90389), (409, 61438), (442, 56851), (818, 30719), (1807, 13906), (2363, 10634), (3614, 6953), (4726, 5317)]