128839000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{6781}}^1$

素因数の和:6821

約数の個数: 64

約数和(自身を含む): 317397600

約数和(自身を除く): 188558600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1900, 2375, 3800, 4750, 6781, 9500, 13562, 19000, 27124, 33905, 54248, 67810, 128839, 135620, 169525, 257678, 271240, 339050, 515356, 644195, 678100, 847625, 1030712, 1288390, 1356200, 1695250, 2576780, 3220975, 3390500, 5153560, 6441950, 6781000, 12883900, 16104875, 25767800, 32209750, 64419500, 128839000]

約数ペア:

[(1, 128839000), (2, 64419500), (4, 32209750), (5, 25767800), (8, 16104875), (10, 12883900), (19, 6781000), (20, 6441950), (25, 5153560), (38, 3390500), (40, 3220975), (50, 2576780), (76, 1695250), (95, 1356200), (100, 1288390), (125, 1030712), (152, 847625), (190, 678100), (200, 644195), (250, 515356), (380, 339050), (475, 271240), (500, 257678), (760, 169525), (950, 135620), (1000, 128839), (1900, 67810), (2375, 54248), (3800, 33905), (4750, 27124), (6781, 19000), (9500, 13562)]