20685720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15671}}^1$

素因数の和:15696

約数の個数: 64

約数和(自身を含む): 67703040

約数和(自身を除く): 47017320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15671, 31342, 47013, 62684, 78355, 94026, 125368, 156710, 172381, 188052, 235065, 313420, 344762, 376104, 470130, 517143, 626840, 689524, 861905, 940260, 1034286, 1379048, 1723810, 1880520, 2068572, 2585715, 3447620, 4137144, 5171430, 6895240, 10342860, 20685720]

約数ペア:

[(1, 20685720), (2, 10342860), (3, 6895240), (4, 5171430), (5, 4137144), (6, 3447620), (8, 2585715), (10, 2068572), (11, 1880520), (12, 1723810), (15, 1379048), (20, 1034286), (22, 940260), (24, 861905), (30, 689524), (33, 626840), (40, 517143), (44, 470130), (55, 376104), (60, 344762), (66, 313420), (88, 235065), (110, 188052), (120, 172381), (132, 156710), (165, 125368), (220, 94026), (264, 78355), (330, 62684), (440, 47013), (660, 31342), (1320, 15671)]