339992920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{54139}}^1$

素因数の和:54307

約数の個数: 32

約数和(自身を含む): 769870800

約数和(自身を除く): 429877880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 54139, 108278, 216556, 270695, 433112, 541390, 1082780, 2165560, 8499823, 16999646, 33999292, 42499115, 67998584, 84998230, 169996460, 339992920]

約数ペア:

[(1, 339992920), (2, 169996460), (4, 84998230), (5, 67998584), (8, 42499115), (10, 33999292), (20, 16999646), (40, 8499823), (157, 2165560), (314, 1082780), (628, 541390), (785, 433112), (1256, 270695), (1570, 216556), (3140, 108278), (6280, 54139)]