20197458832

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1\times {\mathrm{709}}^1$

素因数の和:1328

約数の個数: 80

約数和(自身を含む): 41202720000

約数和(自身を除く): 21005261168

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 199, 368, 389, 398, 709, 778, 796, 1418, 1556, 1592, 2836, 3112, 3184, 4577, 5672, 6224, 8947, 9154, 11344, 16307, 17894, 18308, 32614, 35788, 36616, 65228, 71576, 73232, 77411, 130456, 141091, 143152, 154822, 260912, 275801, 282182, 309644, 551602, 564364, 619288, 1103204, 1128728, 1238576, 1780453, 2206408, 2257456, 3245093, 3560906, 4412816, 6343423, 6490186, 7121812, 12686846, 12980372, 14243624, 25373692, 25960744, 28487248, 50747384, 51921488, 54884399, 101494768, 109768798, 219537596, 439075192, 878150384, 1262341177, 2524682354, 5049364708, 10098729416, 20197458832]

約数ペア:

[(1, 20197458832), (2, 10098729416), (4, 5049364708), (8, 2524682354), (16, 1262341177), (23, 878150384), (46, 439075192), (92, 219537596), (184, 109768798), (199, 101494768), (368, 54884399), (389, 51921488), (398, 50747384), (709, 28487248), (778, 25960744), (796, 25373692), (1418, 14243624), (1556, 12980372), (1592, 12686846), (2836, 7121812), (3112, 6490186), (3184, 6343423), (4577, 4412816), (5672, 3560906), (6224, 3245093), (8947, 2257456), (9154, 2206408), (11344, 1780453), (16307, 1238576), (17894, 1128728), (18308, 1103204), (32614, 619288), (35788, 564364), (36616, 551602), (65228, 309644), (71576, 282182), (73232, 275801), (77411, 260912), (130456, 154822), (141091, 143152)]