209005000

素因数分解:

$2^3\times 5^4\times {\mathrm{41801}}^1$

素因数の和:41827

約数の個数: 40

約数和(自身を含む): 489710430

約数和(自身を除く): 280705430

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 41801, 83602, 167204, 209005, 334408, 418010, 836020, 1045025, 1672040, 2090050, 4180100, 5225125, 8360200, 10450250, 20900500, 26125625, 41801000, 52251250, 104502500, 209005000]

約数ペア:

[(1, 209005000), (2, 104502500), (4, 52251250), (5, 41801000), (8, 26125625), (10, 20900500), (20, 10450250), (25, 8360200), (40, 5225125), (50, 4180100), (100, 2090050), (125, 1672040), (200, 1045025), (250, 836020), (500, 418010), (625, 334408), (1000, 209005), (1250, 167204), (2500, 83602), (5000, 41801)]