19650760

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2203}}^1$

素因数の和:2437

約数の個数: 32

約数和(自身を含む): 44432640

約数和(自身を除く): 24781880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2203, 2230, 4406, 4460, 8812, 8920, 11015, 17624, 22030, 44060, 88120, 491269, 982538, 1965076, 2456345, 3930152, 4912690, 9825380, 19650760]

約数ペア:

[(1, 19650760), (2, 9825380), (4, 4912690), (5, 3930152), (8, 2456345), (10, 1965076), (20, 982538), (40, 491269), (223, 88120), (446, 44060), (892, 22030), (1115, 17624), (1784, 11015), (2203, 8920), (2230, 8812), (4406, 4460)]