20245888208

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:666

約数の個数: 240

約数和(自身を含む): 51201722880

約数和(自身を除く): 30955834672

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 49, 52, 56, 62, 91, 98, 104, 112, 124, 139, 182, 196, 208, 217, 248, 278, 364, 392, 403, 434, 461, 496, 556, 637, 728, 784, 806, 868, 922, 973, 1112, 1274, 1456, 1519, 1612, 1736, 1807, 1844, 1946, 2224, 2548, 2821, 3038, 3224, 3227, 3472, 3614, 3688, 3892, 4309, 5096, 5642, 5993, 6076, 6448, 6454, 6811, 7228, 7376, 7784, 8618, 10192, 11284, 11986, 12152, 12649, 12908, 13622, 14291, 14456, 15568, 17236, 19747, 22568, 22589, 23972, 24304, 25298, 25816, 27244, 28582, 28912, 30163, 34472, 39494, 41951, 45136, 45178, 47944, 50596, 51632, 54488, 56017, 57164, 60326, 64079, 68944, 78988, 83902, 88543, 90356, 95888, 100037, 101192, 108976, 112034, 114328, 120652, 128158, 157976, 167804, 177086, 180712, 185783, 200074, 202384, 211141, 224068, 228656, 241304, 256316, 293657, 315952, 335608, 354172, 361424, 371566, 392119, 400148, 422282, 448136, 448553, 482608, 512632, 587314, 671216, 700259, 708344, 743132, 784238, 800296, 833027, 844564, 896272, 897106, 1025264, 1174628, 1300481, 1400518, 1416688, 1486264, 1568476, 1600592, 1666054, 1689128, 1794212, 1986449, 2349256, 2600962, 2744833, 2801036, 2972528, 3136952, 3139871, 3332108, 3378256, 3588424, 3972898, 4698512, 5201924, 5489666, 5602072, 5831189, 6273904, 6279742, 6664216, 7176848, 7945796, 9103367, 10403848, 10979332, 11204144, 11662378, 12559484, 13328432, 13905143, 15891592, 18206734, 20807696, 21958664, 23324756, 25118968, 25823837, 27810286, 31783184, 36413468, 40818323, 43917328, 46649512, 50237936, 51647674, 55620572, 72826936, 81636646, 93299024, 97336001, 103295348, 111241144, 145653872, 163273292, 180766859, 194672002, 206590696, 222482288, 326546584, 361533718, 389344004, 413181392, 653093168, 723067436, 778688008, 1265368013, 1446134872, 1557376016, 2530736026, 2892269744, 5061472052, 10122944104, 20245888208]

約数ペア:

[(1, 20245888208), (2, 10122944104), (4, 5061472052), (7, 2892269744), (8, 2530736026), (13, 1557376016), (14, 1446134872), (16, 1265368013), (26, 778688008), (28, 723067436), (31, 653093168), (49, 413181392), (52, 389344004), (56, 361533718), (62, 326546584), (91, 222482288), (98, 206590696), (104, 194672002), (112, 180766859), (124, 163273292), (139, 145653872), (182, 111241144), (196, 103295348), (208, 97336001), (217, 93299024), (248, 81636646), (278, 72826936), (364, 55620572), (392, 51647674), (403, 50237936), (434, 46649512), (461, 43917328), (496, 40818323), (556, 36413468), (637, 31783184), (728, 27810286), (784, 25823837), (806, 25118968), (868, 23324756), (922, 21958664), (973, 20807696), (1112, 18206734), (1274, 15891592), (1456, 13905143), (1519, 13328432), (1612, 12559484), (1736, 11662378), (1807, 11204144), (1844, 10979332), (1946, 10403848), (2224, 9103367), (2548, 7945796), (2821, 7176848), (3038, 6664216), (3224, 6279742), (3227, 6273904), (3472, 5831189), (3614, 5602072), (3688, 5489666), (3892, 5201924), (4309, 4698512), (5096, 3972898), (5642, 3588424), (5993, 3378256), (6076, 3332108), (6448, 3139871), (6454, 3136952), (6811, 2972528), (7228, 2801036), (7376, 2744833), (7784, 2600962), (8618, 2349256), (10192, 1986449), (11284, 1794212), (11986, 1689128), (12152, 1666054), (12649, 1600592), (12908, 1568476), (13622, 1486264), (14291, 1416688), (14456, 1400518), (15568, 1300481), (17236, 1174628), (19747, 1025264), (22568, 897106), (22589, 896272), (23972, 844564), (24304, 833027), (25298, 800296), (25816, 784238), (27244, 743132), (28582, 708344), (28912, 700259), (30163, 671216), (34472, 587314), (39494, 512632), (41951, 482608), (45136, 448553), (45178, 448136), (47944, 422282), (50596, 400148), (51632, 392119), (54488, 371566), (56017, 361424), (57164, 354172), (60326, 335608), (64079, 315952), (68944, 293657), (78988, 256316), (83902, 241304), (88543, 228656), (90356, 224068), (95888, 211141), (100037, 202384), (101192, 200074), (108976, 185783), (112034, 180712), (114328, 177086), (120652, 167804), (128158, 157976)]