681004810

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1\times {\mathrm{811}}^1$

素因数の和:1590

約数の個数: 32

約数和(自身を含む): 1238618304

約数和(自身を除く): 557613494

約数列:

[1, 2, 5, 10, 131, 262, 641, 655, 811, 1282, 1310, 1622, 3205, 4055, 6410, 8110, 83971, 106241, 167942, 212482, 419855, 519851, 531205, 839710, 1039702, 1062410, 2599255, 5198510, 68100481, 136200962, 340502405, 681004810]

約数ペア:

[(1, 681004810), (2, 340502405), (5, 136200962), (10, 68100481), (131, 5198510), (262, 2599255), (641, 1062410), (655, 1039702), (811, 839710), (1282, 531205), (1310, 519851), (1622, 419855), (3205, 212482), (4055, 167942), (6410, 106241), (8110, 83971)]