20716789968

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{172709}}^1$

素因数の和:172754

約数の個数: 180

約数和(自身を含む): 71411785380

約数和(自身を除く): 50694995412

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 34, 36, 42, 48, 49, 51, 56, 63, 68, 72, 84, 98, 102, 112, 119, 126, 136, 144, 147, 153, 168, 196, 204, 238, 252, 272, 294, 306, 336, 357, 392, 408, 441, 476, 504, 588, 612, 714, 784, 816, 833, 882, 952, 1008, 1071, 1176, 1224, 1428, 1666, 1764, 1904, 2142, 2352, 2448, 2499, 2856, 3332, 3528, 4284, 4998, 5712, 6664, 7056, 7497, 8568, 9996, 13328, 14994, 17136, 19992, 29988, 39984, 59976, 119952, 172709, 345418, 518127, 690836, 1036254, 1208963, 1381672, 1554381, 2072508, 2417926, 2763344, 2936053, 3108762, 3626889, 4145016, 4835852, 5872106, 6217524, 7253778, 8290032, 8462741, 8808159, 9671704, 10880667, 11744212, 12435048, 14507556, 16925482, 17616318, 19343408, 20552371, 21761334, 23488424, 24870096, 25388223, 26424477, 29015112, 33850964, 35232636, 41104742, 43522668, 46976848, 50776446, 52848954, 58030224, 61657113, 67701928, 70465272, 76164669, 82209484, 87045336, 101552892, 105697908, 123314226, 135403856, 140930544, 143866597, 152329338, 164418968, 174090672, 184971339, 203105784, 211395816, 246628452, 287733194, 304658676, 328837936, 369942678, 406211568, 422791632, 431599791, 493256904, 575466388, 609317352, 739885356, 863199582, 986513808, 1150932776, 1218634704, 1294799373, 1479770712, 1726399164, 2301865552, 2589598746, 2959541424, 3452798328, 5179197492, 6905596656, 10358394984, 20716789968]

約数ペア:

[(1, 20716789968), (2, 10358394984), (3, 6905596656), (4, 5179197492), (6, 3452798328), (7, 2959541424), (8, 2589598746), (9, 2301865552), (12, 1726399164), (14, 1479770712), (16, 1294799373), (17, 1218634704), (18, 1150932776), (21, 986513808), (24, 863199582), (28, 739885356), (34, 609317352), (36, 575466388), (42, 493256904), (48, 431599791), (49, 422791632), (51, 406211568), (56, 369942678), (63, 328837936), (68, 304658676), (72, 287733194), (84, 246628452), (98, 211395816), (102, 203105784), (112, 184971339), (119, 174090672), (126, 164418968), (136, 152329338), (144, 143866597), (147, 140930544), (153, 135403856), (168, 123314226), (196, 105697908), (204, 101552892), (238, 87045336), (252, 82209484), (272, 76164669), (294, 70465272), (306, 67701928), (336, 61657113), (357, 58030224), (392, 52848954), (408, 50776446), (441, 46976848), (476, 43522668), (504, 41104742), (588, 35232636), (612, 33850964), (714, 29015112), (784, 26424477), (816, 25388223), (833, 24870096), (882, 23488424), (952, 21761334), (1008, 20552371), (1071, 19343408), (1176, 17616318), (1224, 16925482), (1428, 14507556), (1666, 12435048), (1764, 11744212), (1904, 10880667), (2142, 9671704), (2352, 8808159), (2448, 8462741), (2499, 8290032), (2856, 7253778), (3332, 6217524), (3528, 5872106), (4284, 4835852), (4998, 4145016), (5712, 3626889), (6664, 3108762), (7056, 2936053), (7497, 2763344), (8568, 2417926), (9996, 2072508), (13328, 1554381), (14994, 1381672), (17136, 1208963), (19992, 1036254), (29988, 690836), (39984, 518127), (59976, 345418), (119952, 172709)]