217439260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{148931}}^1$

素因数の和:149013

約数の個数: 24

約数和(自身を含む): 462880656

約数和(自身を除く): 245441396

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 148931, 297862, 595724, 744655, 1489310, 2978620, 10871963, 21743926, 43487852, 54359815, 108719630, 217439260]

約数ペア:

[(1, 217439260), (2, 108719630), (4, 54359815), (5, 43487852), (10, 21743926), (20, 10871963), (73, 2978620), (146, 1489310), (292, 744655), (365, 595724), (730, 297862), (1460, 148931)]