520012400

素因数分解:

$2^4\times 5^2\times {\mathrm{1300031}}^1$

素因数の和:1300049

約数の個数: 30

約数和(自身を含む): 1249330752

約数和(自身を除く): 729318352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1300031, 2600062, 5200124, 6500155, 10400248, 13000310, 20800496, 26000620, 32500775, 52001240, 65001550, 104002480, 130003100, 260006200, 520012400]

約数ペア:

[(1, 520012400), (2, 260006200), (4, 130003100), (5, 104002480), (8, 65001550), (10, 52001240), (16, 32500775), (20, 26000620), (25, 20800496), (40, 13000310), (50, 10400248), (80, 6500155), (100, 5200124), (200, 2600062), (400, 1300031)]