80703020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{20483}}^1$

素因数の和:20689

約数の個数: 24

約数和(自身を含む): 170344944

約数和(自身を除く): 89641924

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 20483, 40966, 81932, 102415, 204830, 409660, 4035151, 8070302, 16140604, 20175755, 40351510, 80703020]

約数ペア:

[(1, 80703020), (2, 40351510), (4, 20175755), (5, 16140604), (10, 8070302), (20, 4035151), (197, 409660), (394, 204830), (788, 102415), (985, 81932), (1970, 40966), (3940, 20483)]