2782040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 6313680

約数和(自身を除く): 3531640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 443, 628, 785, 886, 1256, 1570, 1772, 2215, 3140, 3544, 4430, 6280, 8860, 17720, 69551, 139102, 278204, 347755, 556408, 695510, 1391020, 2782040]

約数ペア:

[(1, 2782040), (2, 1391020), (4, 695510), (5, 556408), (8, 347755), (10, 278204), (20, 139102), (40, 69551), (157, 17720), (314, 8860), (443, 6280), (628, 4430), (785, 3544), (886, 3140), (1256, 2215), (1570, 1772)]