20557320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24473}}^1$

素因数の和:24494

約数の個数: 64

約数和(自身を含む): 70485120

約数和(自身を除く): 49927800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24473, 48946, 73419, 97892, 122365, 146838, 171311, 195784, 244730, 293676, 342622, 367095, 489460, 513933, 587352, 685244, 734190, 856555, 978920, 1027866, 1370488, 1468380, 1713110, 2055732, 2569665, 2936760, 3426220, 4111464, 5139330, 6852440, 10278660, 20557320]

約数ペア:

[(1, 20557320), (2, 10278660), (3, 6852440), (4, 5139330), (5, 4111464), (6, 3426220), (7, 2936760), (8, 2569665), (10, 2055732), (12, 1713110), (14, 1468380), (15, 1370488), (20, 1027866), (21, 978920), (24, 856555), (28, 734190), (30, 685244), (35, 587352), (40, 513933), (42, 489460), (56, 367095), (60, 342622), (70, 293676), (84, 244730), (105, 195784), (120, 171311), (140, 146838), (168, 122365), (210, 97892), (280, 73419), (420, 48946), (840, 24473)]