128522140

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{42557}}^1$

素因数の和:42717

約数の個数: 24

約数和(自身を含む): 271690272

約数和(自身を除く): 143168132

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 42557, 85114, 170228, 212785, 425570, 851140, 6426107, 12852214, 25704428, 32130535, 64261070, 128522140]

約数ペア:

[(1, 128522140), (2, 64261070), (4, 32130535), (5, 25704428), (10, 12852214), (20, 6426107), (151, 851140), (302, 425570), (604, 212785), (755, 170228), (1510, 85114), (3020, 42557)]