72105200

素因数分解:

$2^4\times 5^2\times {\mathrm{180263}}^1$

素因数の和:180281

約数の個数: 30

約数和(自身を含む): 173233704

約数和(自身を除く): 101128504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180263, 360526, 721052, 901315, 1442104, 1802630, 2884208, 3605260, 4506575, 7210520, 9013150, 14421040, 18026300, 36052600, 72105200]

約数ペア:

[(1, 72105200), (2, 36052600), (4, 18026300), (5, 14421040), (8, 9013150), (10, 7210520), (16, 4506575), (20, 3605260), (25, 2884208), (40, 1802630), (50, 1442104), (80, 901315), (100, 721052), (200, 360526), (400, 180263)]