20913855480

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{1093}}^1\times {\mathrm{2531}}^1$

素因数の和:3651

約数の個数: 256

約数和(自身を含む): 79776230400

約数和(自身を除く): 58862374920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1093, 1260, 1512, 1890, 2186, 2520, 2531, 3279, 3780, 4372, 5062, 5465, 6558, 7560, 7593, 7651, 8744, 9837, 10124, 10930, 12655, 13116, 15186, 15302, 16395, 17717, 19674, 20248, 21860, 22779, 22953, 25310, 26232, 29511, 30372, 30604, 32790, 35434, 37965, 38255, 39348, 43720, 45558, 45906, 49185, 50620, 53151, 59022, 60744, 61208, 65580, 68337, 68859, 70868, 75930, 76510, 78696, 88585, 91116, 91812, 98370, 101240, 106302, 113895, 114765, 118044, 131160, 136674, 137718, 141736, 147555, 151860, 153020, 159453, 177170, 182232, 183624, 196740, 206577, 212604, 227790, 229530, 236088, 265755, 273348, 275436, 295110, 303720, 306040, 318906, 341685, 344295, 354340, 393480, 413154, 425208, 455580, 459060, 478359, 531510, 546696, 550872, 590220, 637812, 683370, 688590, 708680, 797265, 826308, 911160, 918120, 956718, 1032885, 1063020, 1180440, 1275624, 1366740, 1377180, 1594530, 1652616, 1913436, 2065770, 2126040, 2391795, 2733480, 2754360, 2766383, 3189060, 3826872, 4131540, 4783590, 5532766, 6378120, 8263080, 8299149, 9567180, 11065532, 13831915, 16598298, 19134360, 19364681, 22131064, 24897447, 27663830, 33196596, 38729362, 41495745, 49794894, 55327660, 58094043, 66393192, 74692341, 77458724, 82991490, 96823405, 99589788, 110655320, 116188086, 124487235, 149384682, 154917448, 165982980, 174282129, 193646810, 199179576, 232376172, 248974470, 290470215, 298769364, 331965960, 348564258, 373461705, 387293620, 464752344, 497948940, 522846387, 580940430, 597538728, 697128516, 746923410, 774587240, 871410645, 995897880, 1045692774, 1161880860, 1394257032, 1493846820, 1742821290, 2091385548, 2323761720, 2614231935, 2987693640, 3485642580, 4182771096, 5228463870, 6971285160, 10456927740, 20913855480]

約数ペア:

[(1, 20913855480), (2, 10456927740), (3, 6971285160), (4, 5228463870), (5, 4182771096), (6, 3485642580), (7, 2987693640), (8, 2614231935), (9, 2323761720), (10, 2091385548), (12, 1742821290), (14, 1493846820), (15, 1394257032), (18, 1161880860), (20, 1045692774), (21, 995897880), (24, 871410645), (27, 774587240), (28, 746923410), (30, 697128516), (35, 597538728), (36, 580940430), (40, 522846387), (42, 497948940), (45, 464752344), (54, 387293620), (56, 373461705), (60, 348564258), (63, 331965960), (70, 298769364), (72, 290470215), (84, 248974470), (90, 232376172), (105, 199179576), (108, 193646810), (120, 174282129), (126, 165982980), (135, 154917448), (140, 149384682), (168, 124487235), (180, 116188086), (189, 110655320), (210, 99589788), (216, 96823405), (252, 82991490), (270, 77458724), (280, 74692341), (315, 66393192), (360, 58094043), (378, 55327660), (420, 49794894), (504, 41495745), (540, 38729362), (630, 33196596), (756, 27663830), (840, 24897447), (945, 22131064), (1080, 19364681), (1093, 19134360), (1260, 16598298), (1512, 13831915), (1890, 11065532), (2186, 9567180), (2520, 8299149), (2531, 8263080), (3279, 6378120), (3780, 5532766), (4372, 4783590), (5062, 4131540), (5465, 3826872), (6558, 3189060), (7560, 2766383), (7593, 2754360), (7651, 2733480), (8744, 2391795), (9837, 2126040), (10124, 2065770), (10930, 1913436), (12655, 1652616), (13116, 1594530), (15186, 1377180), (15302, 1366740), (16395, 1275624), (17717, 1180440), (19674, 1063020), (20248, 1032885), (21860, 956718), (22779, 918120), (22953, 911160), (25310, 826308), (26232, 797265), (29511, 708680), (30372, 688590), (30604, 683370), (32790, 637812), (35434, 590220), (37965, 550872), (38255, 546696), (39348, 531510), (43720, 478359), (45558, 459060), (45906, 455580), (49185, 425208), (50620, 413154), (53151, 393480), (59022, 354340), (60744, 344295), (61208, 341685), (65580, 318906), (68337, 306040), (68859, 303720), (70868, 295110), (75930, 275436), (76510, 273348), (78696, 265755), (88585, 236088), (91116, 229530), (91812, 227790), (98370, 212604), (101240, 206577), (106302, 196740), (113895, 183624), (114765, 182232), (118044, 177170), (131160, 159453), (136674, 153020), (137718, 151860), (141736, 147555)]