20563645648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^2$

素因数の和:290

約数の個数: 240

約数和(自身を含む): 51969340416

約数和(自身を除く): 31405694768

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 73, 79, 91, 104, 112, 124, 146, 158, 182, 208, 217, 248, 292, 316, 364, 403, 434, 496, 511, 553, 584, 632, 728, 806, 868, 949, 1022, 1027, 1106, 1168, 1264, 1456, 1612, 1736, 1898, 2044, 2054, 2212, 2263, 2449, 2821, 3224, 3472, 3796, 4088, 4108, 4424, 4526, 4898, 5642, 5767, 6241, 6448, 6643, 7189, 7592, 8176, 8216, 8848, 9052, 9796, 11284, 11534, 12482, 13286, 14378, 15184, 15841, 16432, 17143, 18104, 19592, 22568, 23068, 24964, 26572, 28756, 29419, 31682, 31837, 34286, 36208, 39184, 40369, 43687, 45136, 46136, 49928, 53144, 57512, 58838, 63364, 63674, 68572, 74971, 80738, 81133, 87374, 92272, 99856, 106288, 115024, 117676, 126728, 127348, 137144, 149942, 161476, 162266, 174748, 178777, 193471, 205933, 222859, 235352, 253456, 254696, 274288, 299884, 322952, 324532, 349496, 357554, 386942, 411866, 445718, 455593, 470704, 509392, 524797, 567931, 599768, 645904, 649064, 698992, 715108, 773884, 823732, 891436, 911186, 1049594, 1135862, 1199536, 1251439, 1298128, 1354297, 1430216, 1547768, 1647464, 1782872, 1822372, 2099188, 2271724, 2324101, 2502878, 2515123, 2708594, 2860432, 3095536, 3189151, 3294928, 3565744, 3644744, 4198376, 4543448, 4648202, 5005756, 5030246, 5417188, 5922709, 6378302, 7289488, 8396752, 9086896, 9296404, 10011512, 10060492, 10834376, 11845418, 12756604, 14123383, 16268707, 17605861, 18592808, 20023024, 20120984, 21668752, 23690836, 25513208, 28246766, 32537414, 35211722, 37185616, 40241968, 41458963, 47381672, 51026416, 56493532, 65074828, 70423444, 82917926, 94763344, 98863681, 112987064, 130149656, 140846888, 165835852, 183603979, 197727362, 225974128, 260299312, 281693776, 331671704, 367207958, 395454724, 663343408, 734415916, 790909448, 1285227853, 1468831832, 1581818896, 2570455706, 2937663664, 5140911412, 10281822824, 20563645648]

約数ペア:

[(1, 20563645648), (2, 10281822824), (4, 5140911412), (7, 2937663664), (8, 2570455706), (13, 1581818896), (14, 1468831832), (16, 1285227853), (26, 790909448), (28, 734415916), (31, 663343408), (52, 395454724), (56, 367207958), (62, 331671704), (73, 281693776), (79, 260299312), (91, 225974128), (104, 197727362), (112, 183603979), (124, 165835852), (146, 140846888), (158, 130149656), (182, 112987064), (208, 98863681), (217, 94763344), (248, 82917926), (292, 70423444), (316, 65074828), (364, 56493532), (403, 51026416), (434, 47381672), (496, 41458963), (511, 40241968), (553, 37185616), (584, 35211722), (632, 32537414), (728, 28246766), (806, 25513208), (868, 23690836), (949, 21668752), (1022, 20120984), (1027, 20023024), (1106, 18592808), (1168, 17605861), (1264, 16268707), (1456, 14123383), (1612, 12756604), (1736, 11845418), (1898, 10834376), (2044, 10060492), (2054, 10011512), (2212, 9296404), (2263, 9086896), (2449, 8396752), (2821, 7289488), (3224, 6378302), (3472, 5922709), (3796, 5417188), (4088, 5030246), (4108, 5005756), (4424, 4648202), (4526, 4543448), (4898, 4198376), (5642, 3644744), (5767, 3565744), (6241, 3294928), (6448, 3189151), (6643, 3095536), (7189, 2860432), (7592, 2708594), (8176, 2515123), (8216, 2502878), (8848, 2324101), (9052, 2271724), (9796, 2099188), (11284, 1822372), (11534, 1782872), (12482, 1647464), (13286, 1547768), (14378, 1430216), (15184, 1354297), (15841, 1298128), (16432, 1251439), (17143, 1199536), (18104, 1135862), (19592, 1049594), (22568, 911186), (23068, 891436), (24964, 823732), (26572, 773884), (28756, 715108), (29419, 698992), (31682, 649064), (31837, 645904), (34286, 599768), (36208, 567931), (39184, 524797), (40369, 509392), (43687, 470704), (45136, 455593), (46136, 445718), (49928, 411866), (53144, 386942), (57512, 357554), (58838, 349496), (63364, 324532), (63674, 322952), (68572, 299884), (74971, 274288), (80738, 254696), (81133, 253456), (87374, 235352), (92272, 222859), (99856, 205933), (106288, 193471), (115024, 178777), (117676, 174748), (126728, 162266), (127348, 161476), (137144, 149942)]