12504500

素因数分解:

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

素因数の和:389

約数の個数: 48

約数和(自身を含む): 27714960

約数和(自身を除く): 15210460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 125, 178, 250, 281, 356, 445, 500, 562, 890, 1124, 1405, 1780, 2225, 2810, 4450, 5620, 7025, 8900, 11125, 14050, 22250, 25009, 28100, 35125, 44500, 50018, 70250, 100036, 125045, 140500, 250090, 500180, 625225, 1250450, 2500900, 3126125, 6252250, 12504500]

約数ペア:

[(1, 12504500), (2, 6252250), (4, 3126125), (5, 2500900), (10, 1250450), (20, 625225), (25, 500180), (50, 250090), (89, 140500), (100, 125045), (125, 100036), (178, 70250), (250, 50018), (281, 44500), (356, 35125), (445, 28100), (500, 25009), (562, 22250), (890, 14050), (1124, 11125), (1405, 8900), (1780, 7025), (2225, 5620), (2810, 4450)]