19988695

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1049}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 24897600

約数和(自身を除く): 4908905

約数列:

[1, 5, 37, 103, 185, 515, 1049, 3811, 5245, 19055, 38813, 108047, 194065, 540235, 3997739, 19988695]

約数ペア:

[(1, 19988695), (5, 3997739), (37, 540235), (103, 194065), (185, 108047), (515, 38813), (1049, 19055), (3811, 5245)]