2687840

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 6450192

約数和(自身を除く): 3762352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 157, 160, 214, 314, 428, 535, 628, 785, 856, 1070, 1256, 1570, 1712, 2140, 2512, 3140, 3424, 4280, 5024, 6280, 8560, 12560, 16799, 17120, 25120, 33598, 67196, 83995, 134392, 167990, 268784, 335980, 537568, 671960, 1343920, 2687840]

約数ペア:

[(1, 2687840), (2, 1343920), (4, 671960), (5, 537568), (8, 335980), (10, 268784), (16, 167990), (20, 134392), (32, 83995), (40, 67196), (80, 33598), (107, 25120), (157, 17120), (160, 16799), (214, 12560), (314, 8560), (428, 6280), (535, 5024), (628, 4280), (785, 3424), (856, 3140), (1070, 2512), (1256, 2140), (1570, 1712)]