164534405

素因数分解:

$5^1\times 7^2\times {\mathrm{521}}^1\times {\mathrm{1289}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 230295960

約数和(自身を除く): 65761555

約数列:

[1, 5, 7, 35, 49, 245, 521, 1289, 2605, 3647, 6445, 9023, 18235, 25529, 45115, 63161, 127645, 315805, 671569, 3357845, 4700983, 23504915, 32906881, 164534405]

約数ペア:

[(1, 164534405), (5, 32906881), (7, 23504915), (35, 4700983), (49, 3357845), (245, 671569), (521, 315805), (1289, 127645), (2605, 63161), (3647, 45115), (6445, 25529), (9023, 18235)]