20449900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{5527}}^1$

素因数の和:5578

約数の個数: 36

約数和(自身を含む): 45583888

約数和(自身を除く): 25133988

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 148, 185, 370, 740, 925, 1850, 3700, 5527, 11054, 22108, 27635, 55270, 110540, 138175, 204499, 276350, 408998, 552700, 817996, 1022495, 2044990, 4089980, 5112475, 10224950, 20449900]

約数ペア:

[(1, 20449900), (2, 10224950), (4, 5112475), (5, 4089980), (10, 2044990), (20, 1022495), (25, 817996), (37, 552700), (50, 408998), (74, 276350), (100, 204499), (148, 138175), (185, 110540), (370, 55270), (740, 27635), (925, 22108), (1850, 11054), (3700, 5527)]