20388202016

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{11887}}^1$

素因数の和:11967

約数の個数: 192

約数和(自身を含む): 53684305920

約数和(自身を除く): 33296103904

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 31, 32, 38, 52, 56, 62, 76, 91, 104, 112, 124, 133, 152, 182, 208, 217, 224, 247, 248, 266, 304, 364, 403, 416, 434, 494, 496, 532, 589, 608, 728, 806, 868, 988, 992, 1064, 1178, 1456, 1612, 1729, 1736, 1976, 2128, 2356, 2821, 2912, 3224, 3458, 3472, 3952, 4123, 4256, 4712, 5642, 6448, 6916, 6944, 7657, 7904, 8246, 9424, 11284, 11887, 12896, 13832, 15314, 16492, 18848, 22568, 23774, 27664, 30628, 32984, 45136, 47548, 53599, 55328, 61256, 65968, 83209, 90272, 95096, 107198, 122512, 131936, 154531, 166418, 190192, 214396, 225853, 245024, 309062, 332836, 368497, 380384, 428792, 451706, 618124, 665672, 736994, 857584, 903412, 1081717, 1236248, 1331344, 1473988, 1580971, 1715168, 1806824, 2163434, 2472496, 2579479, 2662688, 2936089, 2947976, 3161942, 3613648, 4326868, 4790461, 4944992, 5158958, 5872178, 5895952, 6323884, 7001443, 7227296, 8653736, 9580922, 10317916, 11744356, 11791904, 12647768, 14002886, 17307472, 19161844, 20552623, 20635832, 23488712, 25295536, 28005772, 33533227, 34614944, 38323688, 41105246, 41271664, 46977424, 49010101, 50591072, 56011544, 67066454, 76647376, 82210492, 82543328, 91018759, 93954848, 98020202, 112023088, 134132908, 153294752, 164420984, 182037518, 196040404, 224046176, 268265816, 328841968, 364075036, 392080808, 536531632, 637131313, 657683936, 728150072, 784161616, 1073063264, 1274262626, 1456300144, 1568323232, 2548525252, 2912600288, 5097050504, 10194101008, 20388202016]

約数ペア:

[(1, 20388202016), (2, 10194101008), (4, 5097050504), (7, 2912600288), (8, 2548525252), (13, 1568323232), (14, 1456300144), (16, 1274262626), (19, 1073063264), (26, 784161616), (28, 728150072), (31, 657683936), (32, 637131313), (38, 536531632), (52, 392080808), (56, 364075036), (62, 328841968), (76, 268265816), (91, 224046176), (104, 196040404), (112, 182037518), (124, 164420984), (133, 153294752), (152, 134132908), (182, 112023088), (208, 98020202), (217, 93954848), (224, 91018759), (247, 82543328), (248, 82210492), (266, 76647376), (304, 67066454), (364, 56011544), (403, 50591072), (416, 49010101), (434, 46977424), (494, 41271664), (496, 41105246), (532, 38323688), (589, 34614944), (608, 33533227), (728, 28005772), (806, 25295536), (868, 23488712), (988, 20635832), (992, 20552623), (1064, 19161844), (1178, 17307472), (1456, 14002886), (1612, 12647768), (1729, 11791904), (1736, 11744356), (1976, 10317916), (2128, 9580922), (2356, 8653736), (2821, 7227296), (2912, 7001443), (3224, 6323884), (3458, 5895952), (3472, 5872178), (3952, 5158958), (4123, 4944992), (4256, 4790461), (4712, 4326868), (5642, 3613648), (6448, 3161942), (6916, 2947976), (6944, 2936089), (7657, 2662688), (7904, 2579479), (8246, 2472496), (9424, 2163434), (11284, 1806824), (11887, 1715168), (12896, 1580971), (13832, 1473988), (15314, 1331344), (16492, 1236248), (18848, 1081717), (22568, 903412), (23774, 857584), (27664, 736994), (30628, 665672), (32984, 618124), (45136, 451706), (47548, 428792), (53599, 380384), (55328, 368497), (61256, 332836), (65968, 309062), (83209, 245024), (90272, 225853), (95096, 214396), (107198, 190192), (122512, 166418), (131936, 154531)]