20500145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6961}}^1$

素因数の和:7016

約数の個数: 16

約数和(自身を含む): 26734080

約数和(自身を除く): 6233935

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6961, 34805, 132259, 215791, 661295, 1078955, 4100029, 20500145]

約数ペア:

[(1, 20500145), (5, 4100029), (19, 1078955), (31, 661295), (95, 215791), (155, 132259), (589, 34805), (2945, 6961)]