81396448

素因数分解:

$2^5\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 144

約数和(自身を含む): 203049504

約数和(自身を除く): 121653056

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 37, 46, 49, 56, 61, 74, 92, 98, 112, 122, 148, 161, 184, 196, 224, 244, 259, 296, 322, 368, 392, 427, 488, 518, 592, 644, 736, 784, 851, 854, 976, 1036, 1127, 1184, 1288, 1403, 1568, 1702, 1708, 1813, 1952, 2072, 2254, 2257, 2576, 2806, 2989, 3404, 3416, 3626, 4144, 4508, 4514, 5152, 5612, 5957, 5978, 6808, 6832, 7252, 8288, 9016, 9028, 9821, 11224, 11914, 11956, 13616, 13664, 14504, 15799, 18032, 18056, 19642, 22448, 23828, 23912, 27232, 29008, 31598, 36064, 36112, 39284, 41699, 44896, 47656, 47824, 51911, 58016, 63196, 68747, 72224, 78568, 83398, 95312, 95648, 103822, 110593, 126392, 137494, 157136, 166796, 190624, 207644, 221186, 252784, 274988, 314272, 333592, 363377, 415288, 442372, 505568, 549976, 667184, 726754, 830576, 884744, 1099952, 1334368, 1453508, 1661152, 1769488, 2199904, 2543639, 2907016, 3538976, 5087278, 5814032, 10174556, 11628064, 20349112, 40698224, 81396448]

約数ペア:

[(1, 81396448), (2, 40698224), (4, 20349112), (7, 11628064), (8, 10174556), (14, 5814032), (16, 5087278), (23, 3538976), (28, 2907016), (32, 2543639), (37, 2199904), (46, 1769488), (49, 1661152), (56, 1453508), (61, 1334368), (74, 1099952), (92, 884744), (98, 830576), (112, 726754), (122, 667184), (148, 549976), (161, 505568), (184, 442372), (196, 415288), (224, 363377), (244, 333592), (259, 314272), (296, 274988), (322, 252784), (368, 221186), (392, 207644), (427, 190624), (488, 166796), (518, 157136), (592, 137494), (644, 126392), (736, 110593), (784, 103822), (851, 95648), (854, 95312), (976, 83398), (1036, 78568), (1127, 72224), (1184, 68747), (1288, 63196), (1403, 58016), (1568, 51911), (1702, 47824), (1708, 47656), (1813, 44896), (1952, 41699), (2072, 39284), (2254, 36112), (2257, 36064), (2576, 31598), (2806, 29008), (2989, 27232), (3404, 23912), (3416, 23828), (3626, 22448), (4144, 19642), (4508, 18056), (4514, 18032), (5152, 15799), (5612, 14504), (5957, 13664), (5978, 13616), (6808, 11956), (6832, 11914), (7252, 11224), (8288, 9821), (9016, 9028)]