20520950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{21601}}^1$

素因数の和:21632

約数の個数: 24

約数和(自身を含む): 40179720

約数和(自身を除く): 19658770

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 21601, 43202, 108005, 216010, 410419, 540025, 820838, 1080050, 2052095, 4104190, 10260475, 20520950]

約数ペア:

[(1, 20520950), (2, 10260475), (5, 4104190), (10, 2052095), (19, 1080050), (25, 820838), (38, 540025), (50, 410419), (95, 216010), (190, 108005), (475, 43202), (950, 21601)]