19842995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 26516160

約数和(自身を除く): 6673165

約数列:

[1, 5, 17, 43, 61, 85, 89, 215, 305, 445, 731, 1037, 1513, 2623, 3655, 3827, 5185, 5429, 7565, 13115, 19135, 27145, 44591, 65059, 92293, 222955, 233447, 325295, 461465, 1167235, 3968599, 19842995]

約数ペア:

[(1, 19842995), (5, 3968599), (17, 1167235), (43, 461465), (61, 325295), (85, 233447), (89, 222955), (215, 92293), (305, 65059), (445, 44591), (731, 27145), (1037, 19135), (1513, 13115), (2623, 7565), (3655, 5429), (3827, 5185)]