20171478180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{403591}}^1$

素因数の和:403634

約数の個数: 144

約数和(自身を含む): 69566345856

約数和(自身を除く): 49394867676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1470, 1666, 1785, 2380, 2499, 2940, 3332, 3570, 4165, 4998, 7140, 8330, 9996, 12495, 16660, 24990, 49980, 403591, 807182, 1210773, 1614364, 2017955, 2421546, 2825137, 4035910, 4843092, 5650274, 6053865, 6861047, 8071820, 8475411, 11300548, 12107730, 13722094, 14125685, 16950822, 19775959, 20583141, 24215460, 27444188, 28251370, 33901644, 34305235, 39551918, 41166282, 42377055, 48027329, 56502740, 59327877, 68610470, 79103836, 82332564, 84754110, 96054658, 98879795, 102915705, 118655754, 137220940, 144081987, 169508220, 192109316, 197759590, 205831410, 237311508, 240136645, 288163974, 296639385, 336191303, 395519180, 411662820, 480273290, 576327948, 593278770, 672382606, 720409935, 960546580, 1008573909, 1186557540, 1344765212, 1440819870, 1680956515, 2017147818, 2881639740, 3361913030, 4034295636, 5042869545, 6723826060, 10085739090, 20171478180]

約数ペア:

[(1, 20171478180), (2, 10085739090), (3, 6723826060), (4, 5042869545), (5, 4034295636), (6, 3361913030), (7, 2881639740), (10, 2017147818), (12, 1680956515), (14, 1440819870), (15, 1344765212), (17, 1186557540), (20, 1008573909), (21, 960546580), (28, 720409935), (30, 672382606), (34, 593278770), (35, 576327948), (42, 480273290), (49, 411662820), (51, 395519180), (60, 336191303), (68, 296639385), (70, 288163974), (84, 240136645), (85, 237311508), (98, 205831410), (102, 197759590), (105, 192109316), (119, 169508220), (140, 144081987), (147, 137220940), (170, 118655754), (196, 102915705), (204, 98879795), (210, 96054658), (238, 84754110), (245, 82332564), (255, 79103836), (294, 68610470), (340, 59327877), (357, 56502740), (420, 48027329), (476, 42377055), (490, 41166282), (510, 39551918), (588, 34305235), (595, 33901644), (714, 28251370), (735, 27444188), (833, 24215460), (980, 20583141), (1020, 19775959), (1190, 16950822), (1428, 14125685), (1470, 13722094), (1666, 12107730), (1785, 11300548), (2380, 8475411), (2499, 8071820), (2940, 6861047), (3332, 6053865), (3570, 5650274), (4165, 4843092), (4998, 4035910), (7140, 2825137), (8330, 2421546), (9996, 2017955), (12495, 1614364), (16660, 1210773), (24990, 807182), (49980, 403591)]