128516240

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{12263}}^1$

素因数の和:12407

約数の個数: 40

約数和(自身を含む): 301105728

約数和(自身を除く): 172589488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 12263, 24526, 49052, 61315, 98104, 122630, 196208, 245260, 490520, 981040, 1606453, 3212906, 6425812, 8032265, 12851624, 16064530, 25703248, 32129060, 64258120, 128516240]

約数ペア:

[(1, 128516240), (2, 64258120), (4, 32129060), (5, 25703248), (8, 16064530), (10, 12851624), (16, 8032265), (20, 6425812), (40, 3212906), (80, 1606453), (131, 981040), (262, 490520), (524, 245260), (655, 196208), (1048, 122630), (1310, 98104), (2096, 61315), (2620, 49052), (5240, 24526), (10480, 12263)]