26398505

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 39890880

約数和(自身を除く): 13492375

約数列:

[1, 5, 7, 19, 35, 49, 53, 95, 107, 133, 245, 265, 371, 535, 665, 749, 931, 1007, 1855, 2033, 2597, 3745, 4655, 5035, 5243, 5671, 7049, 10165, 12985, 14231, 26215, 28355, 35245, 39697, 49343, 71155, 99617, 107749, 198485, 246715, 277879, 498085, 538745, 754243, 1389395, 3771215, 5279701, 26398505]

約数ペア:

[(1, 26398505), (5, 5279701), (7, 3771215), (19, 1389395), (35, 754243), (49, 538745), (53, 498085), (95, 277879), (107, 246715), (133, 198485), (245, 107749), (265, 99617), (371, 71155), (535, 49343), (665, 39697), (749, 35245), (931, 28355), (1007, 26215), (1855, 14231), (2033, 12985), (2597, 10165), (3745, 7049), (4655, 5671), (5035, 5243)]