13210000

素因数分解:

$2^4\times 5^4\times {\mathrm{1321}}^1$

素因数の和:1349

約数の個数: 50

約数和(自身を含む): 32006942

約数和(自身を除く): 18796942

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 1321, 2000, 2500, 2642, 5000, 5284, 6605, 10000, 10568, 13210, 21136, 26420, 33025, 52840, 66050, 105680, 132100, 165125, 264200, 330250, 528400, 660500, 825625, 1321000, 1651250, 2642000, 3302500, 6605000, 13210000]

約数ペア:

[(1, 13210000), (2, 6605000), (4, 3302500), (5, 2642000), (8, 1651250), (10, 1321000), (16, 825625), (20, 660500), (25, 528400), (40, 330250), (50, 264200), (80, 165125), (100, 132100), (125, 105680), (200, 66050), (250, 52840), (400, 33025), (500, 26420), (625, 21136), (1000, 13210), (1250, 10568), (1321, 10000), (2000, 6605), (2500, 5284), (2642, 5000)]