8390000

素因数分解:

$2^4\times 5^4\times {\mathrm{839}}^1$

素因数の和:867

約数の個数: 50

約数和(自身を含む): 20337240

約数和(自身を除く): 11947240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 839, 1000, 1250, 1678, 2000, 2500, 3356, 4195, 5000, 6712, 8390, 10000, 13424, 16780, 20975, 33560, 41950, 67120, 83900, 104875, 167800, 209750, 335600, 419500, 524375, 839000, 1048750, 1678000, 2097500, 4195000, 8390000]

約数ペア:

[(1, 8390000), (2, 4195000), (4, 2097500), (5, 1678000), (8, 1048750), (10, 839000), (16, 524375), (20, 419500), (25, 335600), (40, 209750), (50, 167800), (80, 104875), (100, 83900), (125, 67120), (200, 41950), (250, 33560), (400, 20975), (500, 16780), (625, 13424), (839, 10000), (1000, 8390), (1250, 6712), (1678, 5000), (2000, 4195), (2500, 3356)]