20905156688

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:326

約数の個数: 240

約数和(自身を含む): 48328513920

約数和(自身を除く): 27423357232

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 29, 46, 52, 58, 67, 92, 104, 116, 134, 169, 173, 184, 208, 232, 268, 299, 338, 346, 368, 377, 464, 536, 598, 667, 676, 692, 754, 871, 1072, 1196, 1334, 1352, 1384, 1508, 1541, 1742, 1943, 2249, 2392, 2668, 2704, 2768, 3016, 3082, 3484, 3886, 3887, 3979, 4498, 4784, 4901, 5017, 5336, 6032, 6164, 6968, 7772, 7774, 7958, 8671, 8996, 9802, 10034, 10672, 11323, 11591, 12328, 13936, 15544, 15548, 15916, 17342, 17992, 19604, 20033, 20068, 22646, 23182, 24656, 25259, 29237, 31088, 31096, 31832, 34684, 35984, 39208, 40066, 40136, 44689, 45292, 46364, 50518, 51727, 58474, 62192, 63664, 65221, 69368, 78416, 80132, 80272, 89378, 90584, 92728, 101036, 103454, 112723, 115391, 116948, 130442, 138736, 150683, 160264, 178756, 181168, 185456, 202072, 206908, 225446, 230782, 233896, 260429, 260884, 266593, 301366, 320528, 328367, 336139, 357512, 404144, 413816, 450892, 461564, 467792, 520858, 521768, 533186, 580957, 602732, 656734, 672278, 672451, 715024, 827632, 847873, 901784, 923128, 1041716, 1043536, 1066372, 1161914, 1205464, 1313468, 1344556, 1344902, 1500083, 1695746, 1803568, 1846256, 1958879, 2083432, 2132744, 2323828, 2410928, 2626936, 2689112, 2689804, 3000166, 3391492, 3465709, 3917758, 4166864, 4265488, 4369807, 4647656, 5253872, 5378224, 5379608, 6000332, 6782984, 6931418, 7552441, 7731197, 7835516, 8739614, 9295312, 10759216, 12000664, 13565968, 13862836, 15104882, 15462394, 15671032, 17479228, 19501079, 24001328, 27725672, 30209764, 30924788, 31342064, 34958456, 39002158, 45054217, 55451344, 56807491, 60419528, 61849576, 69916912, 78004316, 90108434, 100505561, 113614982, 120839056, 123699152, 156008632, 180216868, 201011122, 227229964, 312017264, 360433736, 402022244, 454459928, 720867472, 804044488, 908919856, 1306572293, 1608088976, 2613144586, 5226289172, 10452578344, 20905156688]

約数ペア:

[(1, 20905156688), (2, 10452578344), (4, 5226289172), (8, 2613144586), (13, 1608088976), (16, 1306572293), (23, 908919856), (26, 804044488), (29, 720867472), (46, 454459928), (52, 402022244), (58, 360433736), (67, 312017264), (92, 227229964), (104, 201011122), (116, 180216868), (134, 156008632), (169, 123699152), (173, 120839056), (184, 113614982), (208, 100505561), (232, 90108434), (268, 78004316), (299, 69916912), (338, 61849576), (346, 60419528), (368, 56807491), (377, 55451344), (464, 45054217), (536, 39002158), (598, 34958456), (667, 31342064), (676, 30924788), (692, 30209764), (754, 27725672), (871, 24001328), (1072, 19501079), (1196, 17479228), (1334, 15671032), (1352, 15462394), (1384, 15104882), (1508, 13862836), (1541, 13565968), (1742, 12000664), (1943, 10759216), (2249, 9295312), (2392, 8739614), (2668, 7835516), (2704, 7731197), (2768, 7552441), (3016, 6931418), (3082, 6782984), (3484, 6000332), (3886, 5379608), (3887, 5378224), (3979, 5253872), (4498, 4647656), (4784, 4369807), (4901, 4265488), (5017, 4166864), (5336, 3917758), (6032, 3465709), (6164, 3391492), (6968, 3000166), (7772, 2689804), (7774, 2689112), (7958, 2626936), (8671, 2410928), (8996, 2323828), (9802, 2132744), (10034, 2083432), (10672, 1958879), (11323, 1846256), (11591, 1803568), (12328, 1695746), (13936, 1500083), (15544, 1344902), (15548, 1344556), (15916, 1313468), (17342, 1205464), (17992, 1161914), (19604, 1066372), (20033, 1043536), (20068, 1041716), (22646, 923128), (23182, 901784), (24656, 847873), (25259, 827632), (29237, 715024), (31088, 672451), (31096, 672278), (31832, 656734), (34684, 602732), (35984, 580957), (39208, 533186), (40066, 521768), (40136, 520858), (44689, 467792), (45292, 461564), (46364, 450892), (50518, 413816), (51727, 404144), (58474, 357512), (62192, 336139), (63664, 328367), (65221, 320528), (69368, 301366), (78416, 266593), (80132, 260884), (80272, 260429), (89378, 233896), (90584, 230782), (92728, 225446), (101036, 206908), (103454, 202072), (112723, 185456), (115391, 181168), (116948, 178756), (130442, 160264), (138736, 150683)]