1680700

素因数分解:

$2^2\times 5^2\times 7^5$

素因数の和:49

約数の個数: 54

約数和(自身を含む): 4254936

約数和(自身を除く): 2574236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 980, 1225, 1372, 1715, 2401, 2450, 3430, 4802, 4900, 6860, 8575, 9604, 12005, 16807, 17150, 24010, 33614, 34300, 48020, 60025, 67228, 84035, 120050, 168070, 240100, 336140, 420175, 840350, 1680700]

約数ペア:

[(1, 1680700), (2, 840350), (4, 420175), (5, 336140), (7, 240100), (10, 168070), (14, 120050), (20, 84035), (25, 67228), (28, 60025), (35, 48020), (49, 34300), (50, 33614), (70, 24010), (98, 17150), (100, 16807), (140, 12005), (175, 9604), (196, 8575), (245, 6860), (343, 4900), (350, 4802), (490, 3430), (686, 2450), (700, 2401), (980, 1715), (1225, 1372)]