13220000

素因数分解:

$2^5\times 5^4\times {\mathrm{661}}^1$

素因数の和:691

約数の個数: 60

約数和(自身を含む): 32572386

約数和(自身を除く): 19352386

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 661, 800, 1000, 1250, 1322, 2000, 2500, 2644, 3305, 4000, 5000, 5288, 6610, 10000, 10576, 13220, 16525, 20000, 21152, 26440, 33050, 52880, 66100, 82625, 105760, 132200, 165250, 264400, 330500, 413125, 528800, 661000, 826250, 1322000, 1652500, 2644000, 3305000, 6610000, 13220000]

約数ペア:

[(1, 13220000), (2, 6610000), (4, 3305000), (5, 2644000), (8, 1652500), (10, 1322000), (16, 826250), (20, 661000), (25, 528800), (32, 413125), (40, 330500), (50, 264400), (80, 165250), (100, 132200), (125, 105760), (160, 82625), (200, 66100), (250, 52880), (400, 33050), (500, 26440), (625, 21152), (661, 20000), (800, 16525), (1000, 13220), (1250, 10576), (1322, 10000), (2000, 6610), (2500, 5288), (2644, 5000), (3305, 4000)]