20763540

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1831}}^1$

素因数の和:1859

約数の個数: 120

約数和(自身を含む): 74481792

約数和(自身を除く): 53718252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1831, 1890, 2268, 2835, 3662, 3780, 5493, 5670, 7324, 9155, 10986, 11340, 12817, 16479, 18310, 21972, 25634, 27465, 32958, 36620, 38451, 49437, 51268, 54930, 64085, 65916, 76902, 82395, 98874, 109860, 115353, 128170, 148311, 153804, 164790, 192255, 197748, 230706, 247185, 256340, 296622, 329580, 346059, 384510, 461412, 494370, 576765, 593244, 692118, 741555, 769020, 988740, 1038177, 1153530, 1384236, 1483110, 1730295, 2076354, 2307060, 2966220, 3460590, 4152708, 5190885, 6921180, 10381770, 20763540]

約数ペア:

[(1, 20763540), (2, 10381770), (3, 6921180), (4, 5190885), (5, 4152708), (6, 3460590), (7, 2966220), (9, 2307060), (10, 2076354), (12, 1730295), (14, 1483110), (15, 1384236), (18, 1153530), (20, 1038177), (21, 988740), (27, 769020), (28, 741555), (30, 692118), (35, 593244), (36, 576765), (42, 494370), (45, 461412), (54, 384510), (60, 346059), (63, 329580), (70, 296622), (81, 256340), (84, 247185), (90, 230706), (105, 197748), (108, 192255), (126, 164790), (135, 153804), (140, 148311), (162, 128170), (180, 115353), (189, 109860), (210, 98874), (252, 82395), (270, 76902), (315, 65916), (324, 64085), (378, 54930), (405, 51268), (420, 49437), (540, 38451), (567, 36620), (630, 32958), (756, 27465), (810, 25634), (945, 21972), (1134, 18310), (1260, 16479), (1620, 12817), (1831, 11340), (1890, 10986), (2268, 9155), (2835, 7324), (3662, 5670), (3780, 5493)]