39739220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18229}}^1$

素因数の和:18347

約数の個数: 24

約数和(自身を含む): 84222600

約数和(自身を除く): 44483380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18229, 36458, 72916, 91145, 182290, 364580, 1986961, 3973922, 7947844, 9934805, 19869610, 39739220]

約数ペア:

[(1, 39739220), (2, 19869610), (4, 9934805), (5, 7947844), (10, 3973922), (20, 1986961), (109, 364580), (218, 182290), (436, 91145), (545, 72916), (1090, 36458), (2180, 18229)]