204921808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 120

約数和(自身を含む): 520161152

約数和(自身を除く): 315239344

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 289, 364, 442, 476, 487, 578, 728, 884, 952, 974, 1156, 1456, 1547, 1768, 1904, 1948, 2023, 2312, 3094, 3409, 3536, 3757, 3896, 4046, 4624, 6188, 6331, 6818, 7514, 7792, 8092, 8279, 12376, 12662, 13636, 15028, 16184, 16558, 24752, 25324, 26299, 27272, 30056, 32368, 33116, 44317, 50648, 52598, 54544, 57953, 60112, 66232, 88634, 101296, 105196, 107627, 115906, 132464, 140743, 177268, 210392, 215254, 231812, 281486, 354536, 420784, 430508, 463624, 562972, 709072, 753389, 861016, 927248, 985201, 1125944, 1506778, 1722032, 1829659, 1970402, 2251888, 3013556, 3659318, 3940804, 6027112, 7318636, 7881608, 12054224, 12807613, 14637272, 15763216, 25615226, 29274544, 51230452, 102460904, 204921808]

約数ペア:

[(1, 204921808), (2, 102460904), (4, 51230452), (7, 29274544), (8, 25615226), (13, 15763216), (14, 14637272), (16, 12807613), (17, 12054224), (26, 7881608), (28, 7318636), (34, 6027112), (52, 3940804), (56, 3659318), (68, 3013556), (91, 2251888), (104, 1970402), (112, 1829659), (119, 1722032), (136, 1506778), (182, 1125944), (208, 985201), (221, 927248), (238, 861016), (272, 753389), (289, 709072), (364, 562972), (442, 463624), (476, 430508), (487, 420784), (578, 354536), (728, 281486), (884, 231812), (952, 215254), (974, 210392), (1156, 177268), (1456, 140743), (1547, 132464), (1768, 115906), (1904, 107627), (1948, 105196), (2023, 101296), (2312, 88634), (3094, 66232), (3409, 60112), (3536, 57953), (3757, 54544), (3896, 52598), (4046, 50648), (4624, 44317), (6188, 33116), (6331, 32368), (6818, 30056), (7514, 27272), (7792, 26299), (8092, 25324), (8279, 24752), (12376, 16558), (12662, 16184), (13636, 15028)]