205981545

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:455

約数の個数: 96

約数和(自身を含む): 425174400

約数和(自身を除く): 219192855

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 73, 77, 105, 147, 165, 219, 231, 245, 349, 365, 385, 511, 539, 735, 803, 1047, 1095, 1155, 1533, 1617, 1745, 2409, 2443, 2555, 2695, 3577, 3839, 4015, 5235, 5621, 7329, 7665, 8085, 10731, 11517, 12045, 12215, 16863, 17101, 17885, 19195, 25477, 26873, 28105, 36645, 39347, 51303, 53655, 57585, 76431, 80619, 84315, 85505, 118041, 127385, 134365, 178339, 188111, 196735, 256515, 280247, 382155, 403095, 535017, 564333, 590205, 840741, 891695, 940555, 1248373, 1401235, 1961729, 2675085, 2821665, 3745119, 4203705, 5885187, 6241865, 9808645, 13732103, 18725595, 29425935, 41196309, 68660515, 205981545]

約数ペア:

[(1, 205981545), (3, 68660515), (5, 41196309), (7, 29425935), (11, 18725595), (15, 13732103), (21, 9808645), (33, 6241865), (35, 5885187), (49, 4203705), (55, 3745119), (73, 2821665), (77, 2675085), (105, 1961729), (147, 1401235), (165, 1248373), (219, 940555), (231, 891695), (245, 840741), (349, 590205), (365, 564333), (385, 535017), (511, 403095), (539, 382155), (735, 280247), (803, 256515), (1047, 196735), (1095, 188111), (1155, 178339), (1533, 134365), (1617, 127385), (1745, 118041), (2409, 85505), (2443, 84315), (2555, 80619), (2695, 76431), (3577, 57585), (3839, 53655), (4015, 51303), (5235, 39347), (5621, 36645), (7329, 28105), (7665, 26873), (8085, 25477), (10731, 19195), (11517, 17885), (12045, 17101), (12215, 16863)]