20515400

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1531}}^1$

素因数の和:1614

約数の個数: 48

約数和(自身を含む): 48441840

約数和(自身を除く): 27926440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 200, 268, 335, 536, 670, 1340, 1531, 1675, 2680, 3062, 3350, 6124, 6700, 7655, 12248, 13400, 15310, 30620, 38275, 61240, 76550, 102577, 153100, 205154, 306200, 410308, 512885, 820616, 1025770, 2051540, 2564425, 4103080, 5128850, 10257700, 20515400]

約数ペア:

[(1, 20515400), (2, 10257700), (4, 5128850), (5, 4103080), (8, 2564425), (10, 2051540), (20, 1025770), (25, 820616), (40, 512885), (50, 410308), (67, 306200), (100, 205154), (134, 153100), (200, 102577), (268, 76550), (335, 61240), (536, 38275), (670, 30620), (1340, 15310), (1531, 13400), (1675, 12248), (2680, 7655), (3062, 6700), (3350, 6124)]