19989979488

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{1301}}^1\times {\mathrm{1721}}^1$

素因数の和:3069

約数の個数: 144

約数和(自身を含む): 58759489152

約数和(自身を除く): 38769509664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1301, 1488, 1721, 2232, 2602, 2976, 3442, 3903, 4464, 5163, 5204, 6884, 7806, 8928, 10326, 10408, 11709, 13768, 15489, 15612, 20652, 20816, 23418, 27536, 30978, 31224, 40331, 41304, 41632, 46836, 53351, 55072, 61956, 62448, 80662, 82608, 93672, 106702, 120993, 123912, 124896, 160053, 161324, 165216, 187344, 213404, 241986, 247824, 320106, 322648, 362979, 374688, 426808, 480159, 483972, 495648, 640212, 645296, 725958, 853616, 960318, 967944, 1280424, 1290592, 1451916, 1707232, 1920636, 1935888, 2239021, 2560848, 2903832, 3841272, 3871776, 4478042, 5121696, 5807664, 6717063, 7682544, 8956084, 11615328, 13434126, 15365088, 17912168, 20151189, 26868252, 35824336, 40302378, 53736504, 69409651, 71648672, 80604756, 107473008, 138819302, 161209512, 208228953, 214946016, 277638604, 322419024, 416457906, 555277208, 624686859, 644838048, 832915812, 1110554416, 1249373718, 1665831624, 2221108832, 2498747436, 3331663248, 4997494872, 6663326496, 9994989744, 19989979488]

約数ペア:

[(1, 19989979488), (2, 9994989744), (3, 6663326496), (4, 4997494872), (6, 3331663248), (8, 2498747436), (9, 2221108832), (12, 1665831624), (16, 1249373718), (18, 1110554416), (24, 832915812), (31, 644838048), (32, 624686859), (36, 555277208), (48, 416457906), (62, 322419024), (72, 277638604), (93, 214946016), (96, 208228953), (124, 161209512), (144, 138819302), (186, 107473008), (248, 80604756), (279, 71648672), (288, 69409651), (372, 53736504), (496, 40302378), (558, 35824336), (744, 26868252), (992, 20151189), (1116, 17912168), (1301, 15365088), (1488, 13434126), (1721, 11615328), (2232, 8956084), (2602, 7682544), (2976, 6717063), (3442, 5807664), (3903, 5121696), (4464, 4478042), (5163, 3871776), (5204, 3841272), (6884, 2903832), (7806, 2560848), (8928, 2239021), (10326, 1935888), (10408, 1920636), (11709, 1707232), (13768, 1451916), (15489, 1290592), (15612, 1280424), (20652, 967944), (20816, 960318), (23418, 853616), (27536, 725958), (30978, 645296), (31224, 640212), (40331, 495648), (41304, 483972), (41632, 480159), (46836, 426808), (53351, 374688), (55072, 362979), (61956, 322648), (62448, 320106), (80662, 247824), (82608, 241986), (93672, 213404), (106702, 187344), (120993, 165216), (123912, 161324), (124896, 160053)]