81964680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97577}}^1$

素因数の和:97598

約数の個数: 64

約数和(自身を含む): 281024640

約数和(自身を除く): 199059960

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, 97577, 195154, 292731, 390308, 487885, 585462, 683039, 780616, 975770, 1170924, 1366078, 1463655, 1951540, 2049117, 2341848, 2732156, 2927310, 3415195, 3903080, 4098234, 5464312, 5854620, 6830390, 8196468, 10245585, 11709240, 13660780, 16392936, 20491170, 27321560, 40982340, 81964680]

約数ペア:

[(1, 81964680), (2, 40982340), (3, 27321560), (4, 20491170), (5, 16392936), (6, 13660780), (7, 11709240), (8, 10245585), (10, 8196468), (12, 6830390), (14, 5854620), (15, 5464312), (20, 4098234), (21, 3903080), (24, 3415195), (28, 2927310), (30, 2732156), (35, 2341848), (40, 2049117), (42, 1951540), (56, 1463655), (60, 1366078), (70, 1170924), (84, 975770), (105, 780616), (120, 683039), (140, 585462), (168, 487885), (210, 390308), (280, 292731), (420, 195154), (840, 97577)]