19520275

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 25444800

約数和(自身を除く): 5924525

約数列:

[1, 5, 25, 37, 47, 185, 235, 449, 925, 1175, 1739, 2245, 8695, 11225, 16613, 21103, 43475, 83065, 105515, 415325, 527575, 780811, 3904055, 19520275]

約数ペア:

[(1, 19520275), (5, 3904055), (25, 780811), (37, 527575), (47, 415325), (185, 105515), (235, 83065), (449, 43475), (925, 21103), (1175, 16613), (1739, 11225), (2245, 8695)]