72801547

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 93671424

約数和(自身を除く): 20869877

約数列:

[1, 7, 13, 31, 91, 131, 197, 217, 403, 917, 1379, 1703, 2561, 2821, 4061, 6107, 11921, 17927, 25807, 28427, 42749, 52793, 79391, 180649, 335491, 369551, 555737, 800017, 2348437, 5600119, 10400221, 72801547]

約数ペア:

[(1, 72801547), (7, 10400221), (13, 5600119), (31, 2348437), (91, 800017), (131, 555737), (197, 369551), (217, 335491), (403, 180649), (917, 79391), (1379, 52793), (1703, 42749), (2561, 28427), (2821, 25807), (4061, 17927), (6107, 11921)]