171878785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 229485312

約数和(自身を除く): 57606527

約数列:

[1, 5, 13, 61, 65, 67, 305, 335, 647, 793, 871, 3235, 3965, 4087, 4355, 8411, 20435, 39467, 42055, 43349, 53131, 197335, 216745, 265655, 513071, 563537, 2565355, 2644289, 2817685, 13221445, 34375757, 171878785]

約数ペア:

[(1, 171878785), (5, 34375757), (13, 13221445), (61, 2817685), (65, 2644289), (67, 2565355), (305, 563537), (335, 513071), (647, 265655), (793, 216745), (871, 197335), (3235, 53131), (3965, 43349), (4087, 42055), (4355, 39467), (8411, 20435)]