2123320

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 4831200

約数和(自身を除く): 2707880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 487, 545, 872, 974, 1090, 1948, 2180, 2435, 3896, 4360, 4870, 9740, 19480, 53083, 106166, 212332, 265415, 424664, 530830, 1061660, 2123320]

約数ペア:

[(1, 2123320), (2, 1061660), (4, 530830), (5, 424664), (8, 265415), (10, 212332), (20, 106166), (40, 53083), (109, 19480), (218, 9740), (436, 4870), (487, 4360), (545, 3896), (872, 2435), (974, 2180), (1090, 1948)]