20820000

素因数分解:

$2^5\times 3^1\times 5^4\times {\mathrm{347}}^1$

素因数の和:380

約数の個数: 120

約数和(自身を含む): 68490576

約数和(自身を除く): 47670576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 80, 96, 100, 120, 125, 150, 160, 200, 240, 250, 300, 347, 375, 400, 480, 500, 600, 625, 694, 750, 800, 1000, 1041, 1200, 1250, 1388, 1500, 1735, 1875, 2000, 2082, 2400, 2500, 2776, 3000, 3470, 3750, 4000, 4164, 5000, 5205, 5552, 6000, 6940, 7500, 8328, 8675, 10000, 10410, 11104, 12000, 13880, 15000, 16656, 17350, 20000, 20820, 26025, 27760, 30000, 33312, 34700, 41640, 43375, 52050, 55520, 60000, 69400, 83280, 86750, 104100, 130125, 138800, 166560, 173500, 208200, 216875, 260250, 277600, 347000, 416400, 433750, 520500, 650625, 694000, 832800, 867500, 1041000, 1301250, 1388000, 1735000, 2082000, 2602500, 3470000, 4164000, 5205000, 6940000, 10410000, 20820000]

約数ペア:

[(1, 20820000), (2, 10410000), (3, 6940000), (4, 5205000), (5, 4164000), (6, 3470000), (8, 2602500), (10, 2082000), (12, 1735000), (15, 1388000), (16, 1301250), (20, 1041000), (24, 867500), (25, 832800), (30, 694000), (32, 650625), (40, 520500), (48, 433750), (50, 416400), (60, 347000), (75, 277600), (80, 260250), (96, 216875), (100, 208200), (120, 173500), (125, 166560), (150, 138800), (160, 130125), (200, 104100), (240, 86750), (250, 83280), (300, 69400), (347, 60000), (375, 55520), (400, 52050), (480, 43375), (500, 41640), (600, 34700), (625, 33312), (694, 30000), (750, 27760), (800, 26025), (1000, 20820), (1041, 20000), (1200, 17350), (1250, 16656), (1388, 15000), (1500, 13880), (1735, 12000), (1875, 11104), (2000, 10410), (2082, 10000), (2400, 8675), (2500, 8328), (2776, 7500), (3000, 6940), (3470, 6000), (3750, 5552), (4000, 5205), (4164, 5000)]