128212700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16651}}^1$

素因数の和:16683

約数の個数: 72

約数和(自身を含む): 346894464

約数和(自身を除く): 218681764

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700, 16651, 33302, 66604, 83255, 116557, 166510, 183161, 233114, 333020, 366322, 416275, 466228, 582785, 732644, 832550, 915805, 1165570, 1282127, 1665100, 1831610, 2331140, 2564254, 2913925, 3663220, 4579025, 5128508, 5827850, 6410635, 9158050, 11655700, 12821270, 18316100, 25642540, 32053175, 64106350, 128212700]

約数ペア:

[(1, 128212700), (2, 64106350), (4, 32053175), (5, 25642540), (7, 18316100), (10, 12821270), (11, 11655700), (14, 9158050), (20, 6410635), (22, 5827850), (25, 5128508), (28, 4579025), (35, 3663220), (44, 2913925), (50, 2564254), (55, 2331140), (70, 1831610), (77, 1665100), (100, 1282127), (110, 1165570), (140, 915805), (154, 832550), (175, 732644), (220, 582785), (275, 466228), (308, 416275), (350, 366322), (385, 333020), (550, 233114), (700, 183161), (770, 166510), (1100, 116557), (1540, 83255), (1925, 66604), (3850, 33302), (7700, 16651)]