8400

素因数分解:

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

素因数の和:28

約数の個数: 60

約数和(自身を含む): 30752

約数和(自身を除く): 22352

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, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2800, 4200, 8400]

約数ペア:

[(1, 8400), (2, 4200), (3, 2800), (4, 2100), (5, 1680), (6, 1400), (7, 1200), (8, 1050), (10, 840), (12, 700), (14, 600), (15, 560), (16, 525), (20, 420), (21, 400), (24, 350), (25, 336), (28, 300), (30, 280), (35, 240), (40, 210), (42, 200), (48, 175), (50, 168), (56, 150), (60, 140), (70, 120), (75, 112), (80, 105), (84, 100)]