78827740

素因数分解:

$2^2\times 5^1\times {\mathrm{1933}}^1\times {\mathrm{2039}}^1$

素因数の和:3981

約数の個数: 24

約数和(自身を含む): 165705120

約数和(自身を除く): 86877380

約数列:

[1, 2, 4, 5, 10, 20, 1933, 2039, 3866, 4078, 7732, 8156, 9665, 10195, 19330, 20390, 38660, 40780, 3941387, 7882774, 15765548, 19706935, 39413870, 78827740]

約数ペア:

[(1, 78827740), (2, 39413870), (4, 19706935), (5, 15765548), (10, 7882774), (20, 3941387), (1933, 40780), (2039, 38660), (3866, 20390), (4078, 19330), (7732, 10195), (8156, 9665)]