28728640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5281}}^1$

素因数の和:5315

約数の個数: 56

約数和(自身を含む): 72447912

約数和(自身を除く): 43719272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5281, 5440, 10562, 21124, 26405, 42248, 52810, 84496, 89777, 105620, 168992, 179554, 211240, 337984, 359108, 422480, 448885, 718216, 844960, 897770, 1436432, 1689920, 1795540, 2872864, 3591080, 5745728, 7182160, 14364320, 28728640]

約数ペア:

[(1, 28728640), (2, 14364320), (4, 7182160), (5, 5745728), (8, 3591080), (10, 2872864), (16, 1795540), (17, 1689920), (20, 1436432), (32, 897770), (34, 844960), (40, 718216), (64, 448885), (68, 422480), (80, 359108), (85, 337984), (136, 211240), (160, 179554), (170, 168992), (272, 105620), (320, 89777), (340, 84496), (544, 52810), (680, 42248), (1088, 26405), (1360, 21124), (2720, 10562), (5281, 5440)]