199938500

素因数分解:

$2^2\times 5^3\times {\mathrm{89}}^1\times {\mathrm{4493}}^1$

素因数の和:4601

約数の個数: 48

約数和(自身を含む): 441670320

約数和(自身を除く): 241731820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 125, 178, 250, 356, 445, 500, 890, 1780, 2225, 4450, 4493, 8900, 8986, 11125, 17972, 22250, 22465, 44500, 44930, 89860, 112325, 224650, 399877, 449300, 561625, 799754, 1123250, 1599508, 1999385, 2246500, 3998770, 7997540, 9996925, 19993850, 39987700, 49984625, 99969250, 199938500]

約数ペア:

[(1, 199938500), (2, 99969250), (4, 49984625), (5, 39987700), (10, 19993850), (20, 9996925), (25, 7997540), (50, 3998770), (89, 2246500), (100, 1999385), (125, 1599508), (178, 1123250), (250, 799754), (356, 561625), (445, 449300), (500, 399877), (890, 224650), (1780, 112325), (2225, 89860), (4450, 44930), (4493, 44500), (8900, 22465), (8986, 22250), (11125, 17972)]