78018020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{53437}}^1$

素因数の和:53519

約数の個数: 24

約数和(自身を含む): 166085304

約数和(自身を除く): 88067284

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 53437, 106874, 213748, 267185, 534370, 1068740, 3900901, 7801802, 15603604, 19504505, 39009010, 78018020]

約数ペア:

[(1, 78018020), (2, 39009010), (4, 19504505), (5, 15603604), (10, 7801802), (20, 3900901), (73, 1068740), (146, 534370), (292, 267185), (365, 213748), (730, 106874), (1460, 53437)]