2021424280

素因数分解:

$2^3\times 5^1\times {\mathrm{5101}}^1\times {\mathrm{9907}}^1$

素因数の和:15019

約数の個数: 32

約数和(自身を含む): 4549555440

約数和(自身を除く): 2528131160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5101, 9907, 10202, 19814, 20404, 25505, 39628, 40808, 49535, 51010, 79256, 99070, 102020, 198140, 204040, 396280, 50535607, 101071214, 202142428, 252678035, 404284856, 505356070, 1010712140, 2021424280]

約数ペア:

[(1, 2021424280), (2, 1010712140), (4, 505356070), (5, 404284856), (8, 252678035), (10, 202142428), (20, 101071214), (40, 50535607), (5101, 396280), (9907, 204040), (10202, 198140), (19814, 102020), (20404, 99070), (25505, 79256), (39628, 51010), (40808, 49535)]