20779080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:903

約数の個数: 128

約数和(自身を含む): 73785600

約数和(自身を除く): 53006520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 812, 840, 853, 870, 1015, 1160, 1218, 1624, 1706, 1740, 2030, 2436, 2559, 3045, 3412, 3480, 4060, 4265, 4872, 5118, 5971, 6090, 6824, 8120, 8530, 10236, 11942, 12180, 12795, 17060, 17913, 20472, 23884, 24360, 24737, 25590, 29855, 34120, 35826, 47768, 49474, 51180, 59710, 71652, 74211, 89565, 98948, 102360, 119420, 123685, 143304, 148422, 173159, 179130, 197896, 238840, 247370, 296844, 346318, 358260, 371055, 494740, 519477, 593688, 692636, 716520, 742110, 865795, 989480, 1038954, 1385272, 1484220, 1731590, 2077908, 2597385, 2968440, 3463180, 4155816, 5194770, 6926360, 10389540, 20779080]

約数ペア:

[(1, 20779080), (2, 10389540), (3, 6926360), (4, 5194770), (5, 4155816), (6, 3463180), (7, 2968440), (8, 2597385), (10, 2077908), (12, 1731590), (14, 1484220), (15, 1385272), (20, 1038954), (21, 989480), (24, 865795), (28, 742110), (29, 716520), (30, 692636), (35, 593688), (40, 519477), (42, 494740), (56, 371055), (58, 358260), (60, 346318), (70, 296844), (84, 247370), (87, 238840), (105, 197896), (116, 179130), (120, 173159), (140, 148422), (145, 143304), (168, 123685), (174, 119420), (203, 102360), (210, 98948), (232, 89565), (280, 74211), (290, 71652), (348, 59710), (406, 51180), (420, 49474), (435, 47768), (580, 35826), (609, 34120), (696, 29855), (812, 25590), (840, 24737), (853, 24360), (870, 23884), (1015, 20472), (1160, 17913), (1218, 17060), (1624, 12795), (1706, 12180), (1740, 11942), (2030, 10236), (2436, 8530), (2559, 8120), (3045, 6824), (3412, 6090), (3480, 5971), (4060, 5118), (4265, 4872)]