20478000

素因数分解:

$2^4\times 3^1\times 5^3\times {\mathrm{3413}}^1$

素因数の和:3439

約数の個数: 80

約数和(自身を含む): 66040416

約数和(自身を除く): 45562416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 750, 1000, 1200, 1500, 2000, 3000, 3413, 6000, 6826, 10239, 13652, 17065, 20478, 27304, 34130, 40956, 51195, 54608, 68260, 81912, 85325, 102390, 136520, 163824, 170650, 204780, 255975, 273040, 341300, 409560, 426625, 511950, 682600, 819120, 853250, 1023900, 1279875, 1365200, 1706500, 2047800, 2559750, 3413000, 4095600, 5119500, 6826000, 10239000, 20478000]

約数ペア:

[(1, 20478000), (2, 10239000), (3, 6826000), (4, 5119500), (5, 4095600), (6, 3413000), (8, 2559750), (10, 2047800), (12, 1706500), (15, 1365200), (16, 1279875), (20, 1023900), (24, 853250), (25, 819120), (30, 682600), (40, 511950), (48, 426625), (50, 409560), (60, 341300), (75, 273040), (80, 255975), (100, 204780), (120, 170650), (125, 163824), (150, 136520), (200, 102390), (240, 85325), (250, 81912), (300, 68260), (375, 54608), (400, 51195), (500, 40956), (600, 34130), (750, 27304), (1000, 20478), (1200, 17065), (1500, 13652), (2000, 10239), (3000, 6826), (3413, 6000)]