81966360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97579}}^1$

素因数の和:97600

約数の個数: 64

約数和(自身を含む): 281030400

約数和(自身を除く): 199064040

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, 97579, 195158, 292737, 390316, 487895, 585474, 683053, 780632, 975790, 1170948, 1366106, 1463685, 1951580, 2049159, 2341896, 2732212, 2927370, 3415265, 3903160, 4098318, 5464424, 5854740, 6830530, 8196636, 10245795, 11709480, 13661060, 16393272, 20491590, 27322120, 40983180, 81966360]

約数ペア:

[(1, 81966360), (2, 40983180), (3, 27322120), (4, 20491590), (5, 16393272), (6, 13661060), (7, 11709480), (8, 10245795), (10, 8196636), (12, 6830530), (14, 5854740), (15, 5464424), (20, 4098318), (21, 3903160), (24, 3415265), (28, 2927370), (30, 2732212), (35, 2341896), (40, 2049159), (42, 1951580), (56, 1463685), (60, 1366106), (70, 1170948), (84, 975790), (105, 780632), (120, 683053), (140, 585474), (168, 487895), (210, 390316), (280, 292737), (420, 195158), (840, 97579)]