72131865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5521}}^1$

素因数の和:5609

約数の個数: 32

約数和(自身を含む): 126166656

約数和(自身を除く): 54034791

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 2613, 4355, 5521, 13065, 16563, 27605, 71773, 82815, 215319, 358865, 369907, 1076595, 1109721, 1849535, 4808791, 5548605, 14426373, 24043955, 72131865]

約数ペア:

[(1, 72131865), (3, 24043955), (5, 14426373), (13, 5548605), (15, 4808791), (39, 1849535), (65, 1109721), (67, 1076595), (195, 369907), (201, 358865), (335, 215319), (871, 82815), (1005, 71773), (2613, 27605), (4355, 16563), (5521, 13065)]