20851483128

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{809}}^1$

素因数の和:971

約数の個数: 256

約数和(自身を含む): 63452160000

約数和(自身を除く): 42600676872

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 49, 56, 62, 84, 93, 98, 101, 124, 147, 168, 186, 196, 202, 217, 248, 294, 303, 343, 372, 392, 404, 434, 588, 606, 651, 686, 707, 744, 808, 809, 868, 1029, 1176, 1212, 1302, 1372, 1414, 1519, 1618, 1736, 2058, 2121, 2424, 2427, 2604, 2744, 2828, 3038, 3131, 3236, 4116, 4242, 4557, 4854, 4949, 5208, 5656, 5663, 6076, 6262, 6472, 8232, 8484, 9114, 9393, 9708, 9898, 10633, 11326, 12152, 12524, 14847, 16968, 16989, 18228, 18786, 19416, 19796, 21266, 21917, 22652, 25048, 25079, 29694, 31899, 33978, 34643, 36456, 37572, 39592, 39641, 42532, 43834, 45304, 50158, 59388, 63798, 65751, 67956, 69286, 75144, 75237, 79282, 81709, 85064, 87668, 100316, 103929, 118776, 118923, 127596, 131502, 135912, 138572, 150474, 153419, 158564, 163418, 175336, 175553, 200632, 207858, 237846, 245127, 255192, 263004, 277144, 277487, 300948, 306838, 317128, 326836, 351106, 415716, 460257, 475692, 490254, 526008, 526659, 554974, 571963, 601896, 613676, 653672, 702212, 831432, 832461, 920514, 951384, 980508, 1053318, 1073933, 1109948, 1143926, 1227352, 1228871, 1404424, 1664922, 1715889, 1841028, 1961016, 2106636, 2147866, 2219896, 2287852, 2457742, 2532979, 3221799, 3329844, 3431778, 3682056, 3686613, 4003741, 4213272, 4295732, 4575704, 4915484, 5065958, 6443598, 6659688, 6863556, 7373226, 7598937, 8007482, 8591464, 8602097, 9830968, 10131916, 12011223, 12887196, 13727112, 14746452, 15197874, 16014964, 17204194, 17730853, 20263832, 24022446, 25774392, 25806291, 28026187, 29492904, 30395748, 32029928, 34408388, 35461706, 48044892, 51612582, 53192559, 56052374, 60791496, 68816776, 70923412, 84078561, 96089784, 103225164, 106385118, 112104748, 124115971, 141846824, 168157122, 206450328, 212770236, 224209496, 248231942, 336314244, 372347913, 425540472, 496463884, 672628488, 744695826, 868811797, 992927768, 1489391652, 1737623594, 2606435391, 2978783304, 3475247188, 5212870782, 6950494376, 10425741564, 20851483128]

約数ペア:

[(1, 20851483128), (2, 10425741564), (3, 6950494376), (4, 5212870782), (6, 3475247188), (7, 2978783304), (8, 2606435391), (12, 1737623594), (14, 1489391652), (21, 992927768), (24, 868811797), (28, 744695826), (31, 672628488), (42, 496463884), (49, 425540472), (56, 372347913), (62, 336314244), (84, 248231942), (93, 224209496), (98, 212770236), (101, 206450328), (124, 168157122), (147, 141846824), (168, 124115971), (186, 112104748), (196, 106385118), (202, 103225164), (217, 96089784), (248, 84078561), (294, 70923412), (303, 68816776), (343, 60791496), (372, 56052374), (392, 53192559), (404, 51612582), (434, 48044892), (588, 35461706), (606, 34408388), (651, 32029928), (686, 30395748), (707, 29492904), (744, 28026187), (808, 25806291), (809, 25774392), (868, 24022446), (1029, 20263832), (1176, 17730853), (1212, 17204194), (1302, 16014964), (1372, 15197874), (1414, 14746452), (1519, 13727112), (1618, 12887196), (1736, 12011223), (2058, 10131916), (2121, 9830968), (2424, 8602097), (2427, 8591464), (2604, 8007482), (2744, 7598937), (2828, 7373226), (3038, 6863556), (3131, 6659688), (3236, 6443598), (4116, 5065958), (4242, 4915484), (4557, 4575704), (4854, 4295732), (4949, 4213272), (5208, 4003741), (5656, 3686613), (5663, 3682056), (6076, 3431778), (6262, 3329844), (6472, 3221799), (8232, 2532979), (8484, 2457742), (9114, 2287852), (9393, 2219896), (9708, 2147866), (9898, 2106636), (10633, 1961016), (11326, 1841028), (12152, 1715889), (12524, 1664922), (14847, 1404424), (16968, 1228871), (16989, 1227352), (18228, 1143926), (18786, 1109948), (19416, 1073933), (19796, 1053318), (21266, 980508), (21917, 951384), (22652, 920514), (25048, 832461), (25079, 831432), (29694, 702212), (31899, 653672), (33978, 613676), (34643, 601896), (36456, 571963), (37572, 554974), (39592, 526659), (39641, 526008), (42532, 490254), (43834, 475692), (45304, 460257), (50158, 415716), (59388, 351106), (63798, 326836), (65751, 317128), (67956, 306838), (69286, 300948), (75144, 277487), (75237, 277144), (79282, 263004), (81709, 255192), (85064, 245127), (87668, 237846), (100316, 207858), (103929, 200632), (118776, 175553), (118923, 175336), (127596, 163418), (131502, 158564), (135912, 153419), (138572, 150474)]