243142240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:717

約数の個数: 144

約数和(自身を含む): 665627760

約数和(自身を除く): 422485520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 160, 176, 190, 209, 220, 242, 304, 352, 380, 418, 440, 484, 605, 608, 661, 760, 836, 880, 968, 1045, 1210, 1322, 1520, 1672, 1760, 1936, 2090, 2299, 2420, 2644, 3040, 3305, 3344, 3872, 4180, 4598, 4840, 5288, 6610, 6688, 7271, 8360, 9196, 9680, 10576, 11495, 12559, 13220, 14542, 16720, 18392, 19360, 21152, 22990, 25118, 26440, 29084, 33440, 36355, 36784, 45980, 50236, 52880, 58168, 62795, 72710, 73568, 79981, 91960, 100472, 105760, 116336, 125590, 138149, 145420, 159962, 183920, 200944, 232672, 251180, 276298, 290840, 319924, 367840, 399905, 401888, 502360, 552596, 581680, 639848, 690745, 799810, 1004720, 1105192, 1163360, 1279696, 1381490, 1519639, 1599620, 2009440, 2210384, 2559392, 2762980, 3039278, 3199240, 4420768, 5525960, 6078556, 6398480, 7598195, 11051920, 12157112, 12796960, 15196390, 22103840, 24314224, 30392780, 48628448, 60785560, 121571120, 243142240]

約数ペア:

[(1, 243142240), (2, 121571120), (4, 60785560), (5, 48628448), (8, 30392780), (10, 24314224), (11, 22103840), (16, 15196390), (19, 12796960), (20, 12157112), (22, 11051920), (32, 7598195), (38, 6398480), (40, 6078556), (44, 5525960), (55, 4420768), (76, 3199240), (80, 3039278), (88, 2762980), (95, 2559392), (110, 2210384), (121, 2009440), (152, 1599620), (160, 1519639), (176, 1381490), (190, 1279696), (209, 1163360), (220, 1105192), (242, 1004720), (304, 799810), (352, 690745), (380, 639848), (418, 581680), (440, 552596), (484, 502360), (605, 401888), (608, 399905), (661, 367840), (760, 319924), (836, 290840), (880, 276298), (968, 251180), (1045, 232672), (1210, 200944), (1322, 183920), (1520, 159962), (1672, 145420), (1760, 138149), (1936, 125590), (2090, 116336), (2299, 105760), (2420, 100472), (2644, 91960), (3040, 79981), (3305, 73568), (3344, 72710), (3872, 62795), (4180, 58168), (4598, 52880), (4840, 50236), (5288, 45980), (6610, 36784), (6688, 36355), (7271, 33440), (8360, 29084), (9196, 26440), (9680, 25118), (10576, 22990), (11495, 21152), (12559, 19360), (13220, 18392), (14542, 16720)]