81645000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{5443}}^1$

素因数の和:5472

約数の個数: 80

約数和(自身を含む): 255105840

約数和(自身を除く): 173460840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1500, 1875, 2500, 3000, 3750, 5000, 5443, 7500, 10886, 15000, 16329, 21772, 27215, 32658, 43544, 54430, 65316, 81645, 108860, 130632, 136075, 163290, 217720, 272150, 326580, 408225, 544300, 653160, 680375, 816450, 1088600, 1360750, 1632900, 2041125, 2721500, 3265800, 3401875, 4082250, 5443000, 6803750, 8164500, 10205625, 13607500, 16329000, 20411250, 27215000, 40822500, 81645000]

約数ペア:

[(1, 81645000), (2, 40822500), (3, 27215000), (4, 20411250), (5, 16329000), (6, 13607500), (8, 10205625), (10, 8164500), (12, 6803750), (15, 5443000), (20, 4082250), (24, 3401875), (25, 3265800), (30, 2721500), (40, 2041125), (50, 1632900), (60, 1360750), (75, 1088600), (100, 816450), (120, 680375), (125, 653160), (150, 544300), (200, 408225), (250, 326580), (300, 272150), (375, 217720), (500, 163290), (600, 136075), (625, 130632), (750, 108860), (1000, 81645), (1250, 65316), (1500, 54430), (1875, 43544), (2500, 32658), (3000, 27215), (3750, 21772), (5000, 16329), (5443, 15000), (7500, 10886)]