25645516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 51579360

約数和(自身を除く): 25933844

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 101, 202, 247, 257, 404, 494, 514, 988, 1028, 1313, 1919, 2626, 3341, 3838, 4883, 5252, 6682, 7676, 9766, 13364, 19532, 24947, 25957, 49894, 51914, 63479, 99788, 103828, 126958, 253916, 337441, 493183, 674882, 986366, 1349764, 1972732, 6411379, 12822758, 25645516]

約数ペア:

[(1, 25645516), (2, 12822758), (4, 6411379), (13, 1972732), (19, 1349764), (26, 986366), (38, 674882), (52, 493183), (76, 337441), (101, 253916), (202, 126958), (247, 103828), (257, 99788), (404, 63479), (494, 51914), (514, 49894), (988, 25957), (1028, 24947), (1313, 19532), (1919, 13364), (2626, 9766), (3341, 7676), (3838, 6682), (4883, 5252)]