5122000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:233

約数の個数: 80

約数和(自身を含む): 13405392

約数和(自身を除く): 8283392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 197, 200, 208, 250, 260, 325, 394, 400, 500, 520, 650, 788, 985, 1000, 1040, 1300, 1576, 1625, 1970, 2000, 2561, 2600, 3152, 3250, 3940, 4925, 5122, 5200, 6500, 7880, 9850, 10244, 12805, 13000, 15760, 19700, 20488, 24625, 25610, 26000, 39400, 40976, 49250, 51220, 64025, 78800, 98500, 102440, 128050, 197000, 204880, 256100, 320125, 394000, 512200, 640250, 1024400, 1280500, 2561000, 5122000]

約数ペア:

[(1, 5122000), (2, 2561000), (4, 1280500), (5, 1024400), (8, 640250), (10, 512200), (13, 394000), (16, 320125), (20, 256100), (25, 204880), (26, 197000), (40, 128050), (50, 102440), (52, 98500), (65, 78800), (80, 64025), (100, 51220), (104, 49250), (125, 40976), (130, 39400), (197, 26000), (200, 25610), (208, 24625), (250, 20488), (260, 19700), (325, 15760), (394, 13000), (400, 12805), (500, 10244), (520, 9850), (650, 7880), (788, 6500), (985, 5200), (1000, 5122), (1040, 4925), (1300, 3940), (1576, 3250), (1625, 3152), (1970, 2600), (2000, 2561)]