74891620

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{4561}}^1$

素因数の和:5391

約数の個数: 24

約数和(自身を含む): 157498488

約数和(自身を除く): 82606868

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 4561, 8210, 9122, 16420, 18244, 22805, 45610, 91220, 3744581, 7489162, 14978324, 18722905, 37445810, 74891620]

約数ペア:

[(1, 74891620), (2, 37445810), (4, 18722905), (5, 14978324), (10, 7489162), (20, 3744581), (821, 91220), (1642, 45610), (3284, 22805), (4105, 18244), (4561, 16420), (8210, 9122)]