64780289

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{1553}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 76083840

約数和(自身を除く): 11303551

約数列:

[1, 7, 59, 101, 413, 707, 1553, 5959, 10871, 41713, 91627, 156853, 641389, 1097971, 9254327, 64780289]

約数ペア:

[(1, 64780289), (7, 9254327), (59, 1097971), (101, 641389), (413, 156853), (707, 91627), (1553, 41713), (5959, 10871)]