87636580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 189693504

約数和(自身を除く): 102056924

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 181, 215, 362, 430, 563, 724, 860, 905, 1126, 1810, 2252, 2815, 3620, 5630, 7783, 11260, 15566, 24209, 31132, 38915, 48418, 77830, 96836, 101903, 121045, 155660, 203806, 242090, 407612, 484180, 509515, 1019030, 2038060, 4381829, 8763658, 17527316, 21909145, 43818290, 87636580]

約数ペア:

[(1, 87636580), (2, 43818290), (4, 21909145), (5, 17527316), (10, 8763658), (20, 4381829), (43, 2038060), (86, 1019030), (172, 509515), (181, 484180), (215, 407612), (362, 242090), (430, 203806), (563, 155660), (724, 121045), (860, 101903), (905, 96836), (1126, 77830), (1810, 48418), (2252, 38915), (2815, 31132), (3620, 24209), (5630, 15566), (7783, 11260)]