22780400

素因数分解:

$2^4\times 5^2\times {\mathrm{56951}}^1$

素因数の和:56969

約数の個数: 30

約数和(自身を含む): 54730872

約数和(自身を除く): 31950472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 56951, 113902, 227804, 284755, 455608, 569510, 911216, 1139020, 1423775, 2278040, 2847550, 4556080, 5695100, 11390200, 22780400]

約数ペア:

[(1, 22780400), (2, 11390200), (4, 5695100), (5, 4556080), (8, 2847550), (10, 2278040), (16, 1423775), (20, 1139020), (25, 911216), (40, 569510), (50, 455608), (80, 284755), (100, 227804), (200, 113902), (400, 56951)]