12839000

素因数分解:

$2^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 30944160

約数和(自身を除く): 18105160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 148, 185, 200, 250, 296, 347, 370, 500, 694, 740, 925, 1000, 1388, 1480, 1735, 1850, 2776, 3470, 3700, 4625, 6940, 7400, 8675, 9250, 12839, 13880, 17350, 18500, 25678, 34700, 37000, 43375, 51356, 64195, 69400, 86750, 102712, 128390, 173500, 256780, 320975, 347000, 513560, 641950, 1283900, 1604875, 2567800, 3209750, 6419500, 12839000]

約数ペア:

[(1, 12839000), (2, 6419500), (4, 3209750), (5, 2567800), (8, 1604875), (10, 1283900), (20, 641950), (25, 513560), (37, 347000), (40, 320975), (50, 256780), (74, 173500), (100, 128390), (125, 102712), (148, 86750), (185, 69400), (200, 64195), (250, 51356), (296, 43375), (347, 37000), (370, 34700), (500, 25678), (694, 18500), (740, 17350), (925, 13880), (1000, 12839), (1388, 9250), (1480, 8675), (1735, 7400), (1850, 6940), (2776, 4625), (3470, 3700)]