25312456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 55036800

約数和(自身を除く): 29724344

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 103, 104, 136, 139, 206, 221, 278, 412, 442, 556, 824, 884, 1112, 1339, 1751, 1768, 1807, 2363, 2678, 3502, 3614, 4726, 5356, 7004, 7228, 9452, 10712, 14008, 14317, 14456, 18904, 22763, 28634, 30719, 45526, 57268, 61438, 91052, 114536, 122876, 182104, 186121, 243389, 245752, 372242, 486778, 744484, 973556, 1488968, 1947112, 3164057, 6328114, 12656228, 25312456]

約数ペア:

[(1, 25312456), (2, 12656228), (4, 6328114), (8, 3164057), (13, 1947112), (17, 1488968), (26, 973556), (34, 744484), (52, 486778), (68, 372242), (103, 245752), (104, 243389), (136, 186121), (139, 182104), (206, 122876), (221, 114536), (278, 91052), (412, 61438), (442, 57268), (556, 45526), (824, 30719), (884, 28634), (1112, 22763), (1339, 18904), (1751, 14456), (1768, 14317), (1807, 14008), (2363, 10712), (2678, 9452), (3502, 7228), (3614, 7004), (4726, 5356)]