121509620

素因数分解:

$2^2\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{2851}}^1$

素因数の和:4991

約数の個数: 24

約数和(自身を含む): 255379488

約数和(自身を除く): 133869868

約数列:

[1, 2, 4, 5, 10, 20, 2131, 2851, 4262, 5702, 8524, 10655, 11404, 14255, 21310, 28510, 42620, 57020, 6075481, 12150962, 24301924, 30377405, 60754810, 121509620]

約数ペア:

[(1, 121509620), (2, 60754810), (4, 30377405), (5, 24301924), (10, 12150962), (20, 6075481), (2131, 57020), (2851, 42620), (4262, 28510), (5702, 21310), (8524, 14255), (10655, 11404)]