127788280

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21157}}^1$

素因数の和:21319

約数の個数: 32

約数和(自身を含む): 289441440

約数和(自身を除く): 161653160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 21157, 42314, 84628, 105785, 169256, 211570, 423140, 846280, 3194707, 6389414, 12778828, 15973535, 25557656, 31947070, 63894140, 127788280]

約数ペア:

[(1, 127788280), (2, 63894140), (4, 31947070), (5, 25557656), (8, 15973535), (10, 12778828), (20, 6389414), (40, 3194707), (151, 846280), (302, 423140), (604, 211570), (755, 169256), (1208, 105785), (1510, 84628), (3020, 42314), (6040, 21157)]