20522040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2221}}^1$

素因数の和:2253

約数の個数: 128

約数和(自身を含む): 76792320

約数和(自身を除く): 56270280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2221, 2310, 3080, 4442, 4620, 6663, 8884, 9240, 11105, 13326, 15547, 17768, 22210, 24431, 26652, 31094, 33315, 44420, 46641, 48862, 53304, 62188, 66630, 73293, 77735, 88840, 93282, 97724, 122155, 124376, 133260, 146586, 155470, 171017, 186564, 195448, 233205, 244310, 266520, 293172, 310940, 342034, 366465, 373128, 466410, 488620, 513051, 586344, 621880, 684068, 732930, 855085, 932820, 977240, 1026102, 1368136, 1465860, 1710170, 1865640, 2052204, 2565255, 2931720, 3420340, 4104408, 5130510, 6840680, 10261020, 20522040]

約数ペア:

[(1, 20522040), (2, 10261020), (3, 6840680), (4, 5130510), (5, 4104408), (6, 3420340), (7, 2931720), (8, 2565255), (10, 2052204), (11, 1865640), (12, 1710170), (14, 1465860), (15, 1368136), (20, 1026102), (21, 977240), (22, 932820), (24, 855085), (28, 732930), (30, 684068), (33, 621880), (35, 586344), (40, 513051), (42, 488620), (44, 466410), (55, 373128), (56, 366465), (60, 342034), (66, 310940), (70, 293172), (77, 266520), (84, 244310), (88, 233205), (105, 195448), (110, 186564), (120, 171017), (132, 155470), (140, 146586), (154, 133260), (165, 124376), (168, 122155), (210, 97724), (220, 93282), (231, 88840), (264, 77735), (280, 73293), (308, 66630), (330, 62188), (385, 53304), (420, 48862), (440, 46641), (462, 44420), (616, 33315), (660, 31094), (770, 26652), (840, 24431), (924, 22210), (1155, 17768), (1320, 15547), (1540, 13326), (1848, 11105), (2221, 9240), (2310, 8884), (3080, 6663), (4442, 4620)]