28870120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37987}}^1$

素因数の和:38017

約数の個数: 32

約数和(自身を含む): 68378400

約数和(自身を除く): 39508280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 37987, 75974, 151948, 189935, 303896, 379870, 721753, 759740, 1443506, 1519480, 2887012, 3608765, 5774024, 7217530, 14435060, 28870120]

約数ペア:

[(1, 28870120), (2, 14435060), (4, 7217530), (5, 5774024), (8, 3608765), (10, 2887012), (19, 1519480), (20, 1443506), (38, 759740), (40, 721753), (76, 379870), (95, 303896), (152, 189935), (190, 151948), (380, 75974), (760, 37987)]