81796615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 106928640

約数和(自身を除く): 25132025

約数列:

[1, 5, 19, 67, 71, 95, 181, 335, 355, 905, 1273, 1349, 3439, 4757, 6365, 6745, 12127, 12851, 17195, 23785, 60635, 64255, 90383, 230413, 244169, 451915, 861017, 1152065, 1220845, 4305085, 16359323, 81796615]

約数ペア:

[(1, 81796615), (5, 16359323), (19, 4305085), (67, 1220845), (71, 1152065), (95, 861017), (181, 451915), (335, 244169), (355, 230413), (905, 90383), (1273, 64255), (1349, 60635), (3439, 23785), (4757, 17195), (6365, 12851), (6745, 12127)]