12638000

素因数分解:

$2^4\times 5^3\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 80

約数和(自身を含む): 31337280

約数和(自身を除く): 18699280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 89, 100, 125, 142, 178, 200, 250, 284, 355, 356, 400, 445, 500, 568, 710, 712, 890, 1000, 1136, 1420, 1424, 1775, 1780, 2000, 2225, 2840, 3550, 3560, 4450, 5680, 6319, 7100, 7120, 8875, 8900, 11125, 12638, 14200, 17750, 17800, 22250, 25276, 28400, 31595, 35500, 35600, 44500, 50552, 63190, 71000, 89000, 101104, 126380, 142000, 157975, 178000, 252760, 315950, 505520, 631900, 789875, 1263800, 1579750, 2527600, 3159500, 6319000, 12638000]

約数ペア:

[(1, 12638000), (2, 6319000), (4, 3159500), (5, 2527600), (8, 1579750), (10, 1263800), (16, 789875), (20, 631900), (25, 505520), (40, 315950), (50, 252760), (71, 178000), (80, 157975), (89, 142000), (100, 126380), (125, 101104), (142, 89000), (178, 71000), (200, 63190), (250, 50552), (284, 44500), (355, 35600), (356, 35500), (400, 31595), (445, 28400), (500, 25276), (568, 22250), (710, 17800), (712, 17750), (890, 14200), (1000, 12638), (1136, 11125), (1420, 8900), (1424, 8875), (1775, 7120), (1780, 7100), (2000, 6319), (2225, 5680), (2840, 4450), (3550, 3560)]