180380000

素因数分解:

$2^5\times 5^4\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:370

約数の個数: 120

約数和(自身を含む): 460540080

約数和(自身を除く): 280160080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 125, 145, 160, 200, 232, 250, 290, 311, 400, 464, 500, 580, 622, 625, 725, 800, 928, 1000, 1160, 1244, 1250, 1450, 1555, 2000, 2320, 2488, 2500, 2900, 3110, 3625, 4000, 4640, 4976, 5000, 5800, 6220, 7250, 7775, 9019, 9952, 10000, 11600, 12440, 14500, 15550, 18038, 18125, 20000, 23200, 24880, 29000, 31100, 36076, 36250, 38875, 45095, 49760, 58000, 62200, 72152, 72500, 77750, 90190, 116000, 124400, 144304, 145000, 155500, 180380, 194375, 225475, 248800, 288608, 290000, 311000, 360760, 388750, 450950, 580000, 622000, 721520, 777500, 901900, 1127375, 1244000, 1443040, 1555000, 1803800, 2254750, 3110000, 3607600, 4509500, 5636875, 6220000, 7215200, 9019000, 11273750, 18038000, 22547500, 36076000, 45095000, 90190000, 180380000]

約数ペア:

[(1, 180380000), (2, 90190000), (4, 45095000), (5, 36076000), (8, 22547500), (10, 18038000), (16, 11273750), (20, 9019000), (25, 7215200), (29, 6220000), (32, 5636875), (40, 4509500), (50, 3607600), (58, 3110000), (80, 2254750), (100, 1803800), (116, 1555000), (125, 1443040), (145, 1244000), (160, 1127375), (200, 901900), (232, 777500), (250, 721520), (290, 622000), (311, 580000), (400, 450950), (464, 388750), (500, 360760), (580, 311000), (622, 290000), (625, 288608), (725, 248800), (800, 225475), (928, 194375), (1000, 180380), (1160, 155500), (1244, 145000), (1250, 144304), (1450, 124400), (1555, 116000), (2000, 90190), (2320, 77750), (2488, 72500), (2500, 72152), (2900, 62200), (3110, 58000), (3625, 49760), (4000, 45095), (4640, 38875), (4976, 36250), (5000, 36076), (5800, 31100), (6220, 29000), (7250, 24880), (7775, 23200), (9019, 20000), (9952, 18125), (10000, 18038), (11600, 15550), (12440, 14500)]