5001800

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 11801700

約数和(自身を除く): 6799900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 178, 200, 281, 356, 445, 562, 712, 890, 1124, 1405, 1780, 2225, 2248, 2810, 3560, 4450, 5620, 7025, 8900, 11240, 14050, 17800, 25009, 28100, 50018, 56200, 100036, 125045, 200072, 250090, 500180, 625225, 1000360, 1250450, 2500900, 5001800]

約数ペア:

[(1, 5001800), (2, 2500900), (4, 1250450), (5, 1000360), (8, 625225), (10, 500180), (20, 250090), (25, 200072), (40, 125045), (50, 100036), (89, 56200), (100, 50018), (178, 28100), (200, 25009), (281, 17800), (356, 14050), (445, 11240), (562, 8900), (712, 7025), (890, 5620), (1124, 4450), (1405, 3560), (1780, 2810), (2225, 2248)]