2153804560

素因数分解:

$2^4\times 5^1\times {\mathrm{26922557}}^1$

素因数の和:26922570

約数の個数: 20

約数和(自身を含む): 5007595788

約数和(自身を除く): 2853791228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26922557, 53845114, 107690228, 134612785, 215380456, 269225570, 430760912, 538451140, 1076902280, 2153804560]

約数ペア:

[(1, 2153804560), (2, 1076902280), (4, 538451140), (5, 430760912), (8, 269225570), (10, 215380456), (16, 134612785), (20, 107690228), (40, 53845114), (80, 26922557)]