5641840

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:769

約数の個数: 40

約数和(自身を含む): 13258080

約数和(自身を除く): 7616240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 647, 872, 1090, 1294, 1744, 2180, 2588, 3235, 4360, 5176, 6470, 8720, 10352, 12940, 25880, 51760, 70523, 141046, 282092, 352615, 564184, 705230, 1128368, 1410460, 2820920, 5641840]

約数ペア:

[(1, 5641840), (2, 2820920), (4, 1410460), (5, 1128368), (8, 705230), (10, 564184), (16, 352615), (20, 282092), (40, 141046), (80, 70523), (109, 51760), (218, 25880), (436, 12940), (545, 10352), (647, 8720), (872, 6470), (1090, 5176), (1294, 4360), (1744, 3235), (2180, 2588)]