20535000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{37}}^2$

素因数の和:103

約数の個数: 120

約数和(自身を含む): 65932020

約数和(自身を除く): 45397020

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 37, 40, 50, 60, 74, 75, 100, 111, 120, 125, 148, 150, 185, 200, 222, 250, 296, 300, 370, 375, 444, 500, 555, 600, 625, 740, 750, 888, 925, 1000, 1110, 1250, 1369, 1480, 1500, 1850, 1875, 2220, 2500, 2738, 2775, 3000, 3700, 3750, 4107, 4440, 4625, 5000, 5476, 5550, 6845, 7400, 7500, 8214, 9250, 10952, 11100, 13690, 13875, 15000, 16428, 18500, 20535, 22200, 23125, 27380, 27750, 32856, 34225, 37000, 41070, 46250, 54760, 55500, 68450, 69375, 82140, 92500, 102675, 111000, 136900, 138750, 164280, 171125, 185000, 205350, 273800, 277500, 342250, 410700, 513375, 555000, 684500, 821400, 855625, 1026750, 1369000, 1711250, 2053500, 2566875, 3422500, 4107000, 5133750, 6845000, 10267500, 20535000]

約数ペア:

[(1, 20535000), (2, 10267500), (3, 6845000), (4, 5133750), (5, 4107000), (6, 3422500), (8, 2566875), (10, 2053500), (12, 1711250), (15, 1369000), (20, 1026750), (24, 855625), (25, 821400), (30, 684500), (37, 555000), (40, 513375), (50, 410700), (60, 342250), (74, 277500), (75, 273800), (100, 205350), (111, 185000), (120, 171125), (125, 164280), (148, 138750), (150, 136900), (185, 111000), (200, 102675), (222, 92500), (250, 82140), (296, 69375), (300, 68450), (370, 55500), (375, 54760), (444, 46250), (500, 41070), (555, 37000), (600, 34225), (625, 32856), (740, 27750), (750, 27380), (888, 23125), (925, 22200), (1000, 20535), (1110, 18500), (1250, 16428), (1369, 15000), (1480, 13875), (1500, 13690), (1850, 11100), (1875, 10952), (2220, 9250), (2500, 8214), (2738, 7500), (2775, 7400), (3000, 6845), (3700, 5550), (3750, 5476), (4107, 5000), (4440, 4625)]