261179464

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 634798080

約数和(自身を除く): 373618616

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 71, 91, 104, 124, 142, 163, 182, 217, 248, 284, 326, 364, 403, 434, 497, 568, 652, 728, 806, 868, 923, 994, 1141, 1304, 1612, 1736, 1846, 1988, 2119, 2201, 2282, 2821, 3224, 3692, 3976, 4238, 4402, 4564, 5053, 5642, 6461, 7384, 8476, 8804, 9128, 10106, 11284, 11573, 12922, 14833, 15407, 16952, 17608, 20212, 22568, 23146, 25844, 28613, 29666, 30814, 35371, 40424, 46292, 51688, 57226, 59332, 61628, 65689, 70742, 81011, 92584, 114452, 118664, 123256, 131378, 141484, 150449, 162022, 200291, 228904, 262756, 282968, 300898, 324044, 358763, 400582, 459823, 525512, 601796, 648088, 717526, 801164, 919646, 1053143, 1203592, 1435052, 1602328, 1839292, 2106286, 2511341, 2870104, 3678584, 4212572, 4663919, 5022682, 8425144, 9327838, 10045364, 18655676, 20090728, 32647433, 37311352, 65294866, 130589732, 261179464]

約数ペア:

[(1, 261179464), (2, 130589732), (4, 65294866), (7, 37311352), (8, 32647433), (13, 20090728), (14, 18655676), (26, 10045364), (28, 9327838), (31, 8425144), (52, 5022682), (56, 4663919), (62, 4212572), (71, 3678584), (91, 2870104), (104, 2511341), (124, 2106286), (142, 1839292), (163, 1602328), (182, 1435052), (217, 1203592), (248, 1053143), (284, 919646), (326, 801164), (364, 717526), (403, 648088), (434, 601796), (497, 525512), (568, 459823), (652, 400582), (728, 358763), (806, 324044), (868, 300898), (923, 282968), (994, 262756), (1141, 228904), (1304, 200291), (1612, 162022), (1736, 150449), (1846, 141484), (1988, 131378), (2119, 123256), (2201, 118664), (2282, 114452), (2821, 92584), (3224, 81011), (3692, 70742), (3976, 65689), (4238, 61628), (4402, 59332), (4564, 57226), (5053, 51688), (5642, 46292), (6461, 40424), (7384, 35371), (8476, 30814), (8804, 29666), (9128, 28613), (10106, 25844), (11284, 23146), (11573, 22568), (12922, 20212), (14833, 17608), (15407, 16952)]