213066840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{253651}}^1$

素因数の和:253672

約数の個数: 64

約数和(自身を含む): 730517760

約数和(自身を除く): 517450920

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, 253651, 507302, 760953, 1014604, 1268255, 1521906, 1775557, 2029208, 2536510, 3043812, 3551114, 3804765, 5073020, 5326671, 6087624, 7102228, 7609530, 8877785, 10146040, 10653342, 14204456, 15219060, 17755570, 21306684, 26633355, 30438120, 35511140, 42613368, 53266710, 71022280, 106533420, 213066840]

約数ペア:

[(1, 213066840), (2, 106533420), (3, 71022280), (4, 53266710), (5, 42613368), (6, 35511140), (7, 30438120), (8, 26633355), (10, 21306684), (12, 17755570), (14, 15219060), (15, 14204456), (20, 10653342), (21, 10146040), (24, 8877785), (28, 7609530), (30, 7102228), (35, 6087624), (40, 5326671), (42, 5073020), (56, 3804765), (60, 3551114), (70, 3043812), (84, 2536510), (105, 2029208), (120, 1775557), (140, 1521906), (168, 1268255), (210, 1014604), (280, 760953), (420, 507302), (840, 253651)]