42000

素因数分解:

$2^4\times 3^1\times 5^3\times 7^1$

素因数の和:33

約数の個数: 80

約数和(自身を含む): 154752

約数和(自身を除く): 112752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 125, 140, 150, 168, 175, 200, 210, 240, 250, 280, 300, 336, 350, 375, 400, 420, 500, 525, 560, 600, 700, 750, 840, 875, 1000, 1050, 1200, 1400, 1500, 1680, 1750, 2000, 2100, 2625, 2800, 3000, 3500, 4200, 5250, 6000, 7000, 8400, 10500, 14000, 21000, 42000]

約数ペア:

[(1, 42000), (2, 21000), (3, 14000), (4, 10500), (5, 8400), (6, 7000), (7, 6000), (8, 5250), (10, 4200), (12, 3500), (14, 3000), (15, 2800), (16, 2625), (20, 2100), (21, 2000), (24, 1750), (25, 1680), (28, 1500), (30, 1400), (35, 1200), (40, 1050), (42, 1000), (48, 875), (50, 840), (56, 750), (60, 700), (70, 600), (75, 560), (80, 525), (84, 500), (100, 420), (105, 400), (112, 375), (120, 350), (125, 336), (140, 300), (150, 280), (168, 250), (175, 240), (200, 210)]