28811800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2029}}^1$

素因数の和:2116

約数の個数: 48

約数和(自身を含む): 67964400

約数和(自身を除く): 39152600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1775, 2029, 2840, 3550, 4058, 7100, 8116, 10145, 14200, 16232, 20290, 40580, 50725, 81160, 101450, 144059, 202900, 288118, 405800, 576236, 720295, 1152472, 1440590, 2881180, 3601475, 5762360, 7202950, 14405900, 28811800]

約数ペア:

[(1, 28811800), (2, 14405900), (4, 7202950), (5, 5762360), (8, 3601475), (10, 2881180), (20, 1440590), (25, 1152472), (40, 720295), (50, 576236), (71, 405800), (100, 288118), (142, 202900), (200, 144059), (284, 101450), (355, 81160), (568, 50725), (710, 40580), (1420, 20290), (1775, 16232), (2029, 14200), (2840, 10145), (3550, 8116), (4058, 7100)]