218219420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{54829}}^1$

素因数の和:55037

約数の個数: 24

約数和(自身を含む): 460572000

約数和(自身を除く): 242352580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 54829, 109658, 219316, 274145, 548290, 1096580, 10910971, 21821942, 43643884, 54554855, 109109710, 218219420]

約数ペア:

[(1, 218219420), (2, 109109710), (4, 54554855), (5, 43643884), (10, 21821942), (20, 10910971), (199, 1096580), (398, 548290), (796, 274145), (995, 219316), (1990, 109658), (3980, 54829)]