51212785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 68923008

約数和(自身を除く): 17710223

約数列:

[1, 5, 13, 43, 65, 73, 215, 251, 365, 559, 949, 1255, 2795, 3139, 3263, 4745, 10793, 15695, 16315, 18323, 40807, 53965, 91615, 140309, 204035, 238199, 701545, 787889, 1190995, 3939445, 10242557, 51212785]

約数ペア:

[(1, 51212785), (5, 10242557), (13, 3939445), (43, 1190995), (65, 787889), (73, 701545), (215, 238199), (251, 204035), (365, 140309), (559, 91615), (949, 53965), (1255, 40807), (2795, 18323), (3139, 16315), (3263, 15695), (4745, 10793)]