221363620

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{55619}}^1$

素因数の和:55827

約数の個数: 24

約数和(自身を含む): 467208000

約数和(自身を除く): 245844380

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 55619, 111238, 222476, 278095, 556190, 1112380, 11068181, 22136362, 44272724, 55340905, 110681810, 221363620]

約数ペア:

[(1, 221363620), (2, 110681810), (4, 55340905), (5, 44272724), (10, 22136362), (20, 11068181), (199, 1112380), (398, 556190), (796, 278095), (995, 222476), (1990, 111238), (3980, 55619)]