28128280

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{4657}}^1$

素因数の和:4819

約数の個数: 32

約数和(自身を含む): 63721440

約数和(自身を除く): 35593160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 4657, 6040, 9314, 18628, 23285, 37256, 46570, 93140, 186280, 703207, 1406414, 2812828, 3516035, 5625656, 7032070, 14064140, 28128280]

約数ペア:

[(1, 28128280), (2, 14064140), (4, 7032070), (5, 5625656), (8, 3516035), (10, 2812828), (20, 1406414), (40, 703207), (151, 186280), (302, 93140), (604, 46570), (755, 37256), (1208, 23285), (1510, 18628), (3020, 9314), (4657, 6040)]