20344545

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 18181215

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 83, 117, 195, 249, 415, 419, 585, 747, 1079, 1245, 1257, 2095, 3237, 3735, 3771, 5395, 5447, 6285, 9711, 16185, 16341, 18855, 27235, 34777, 48555, 49023, 81705, 104331, 173885, 245115, 312993, 452101, 521655, 1356303, 1564965, 2260505, 4068909, 6781515, 20344545]

約数ペア:

[(1, 20344545), (3, 6781515), (5, 4068909), (9, 2260505), (13, 1564965), (15, 1356303), (39, 521655), (45, 452101), (65, 312993), (83, 245115), (117, 173885), (195, 104331), (249, 81705), (415, 49023), (419, 48555), (585, 34777), (747, 27235), (1079, 18855), (1245, 16341), (1257, 16185), (2095, 9711), (3237, 6285), (3735, 5447), (3771, 5395)]