81064544

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{137}}^1$

素因数の和:240

約数の個数: 72

約数和(自身を含む): 179757144

約数和(自身を除く): 98692600

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 137, 164, 176, 274, 328, 352, 451, 548, 656, 902, 1096, 1312, 1507, 1681, 1804, 2192, 3014, 3362, 3608, 4384, 5617, 6028, 6724, 7216, 11234, 12056, 13448, 14432, 18491, 22468, 24112, 26896, 36982, 44936, 48224, 53792, 61787, 73964, 89872, 123574, 147928, 179744, 230297, 247148, 295856, 460594, 494296, 591712, 921188, 988592, 1842376, 1977184, 2533267, 3684752, 5066534, 7369504, 10133068, 20266136, 40532272, 81064544]

約数ペア:

[(1, 81064544), (2, 40532272), (4, 20266136), (8, 10133068), (11, 7369504), (16, 5066534), (22, 3684752), (32, 2533267), (41, 1977184), (44, 1842376), (82, 988592), (88, 921188), (137, 591712), (164, 494296), (176, 460594), (274, 295856), (328, 247148), (352, 230297), (451, 179744), (548, 147928), (656, 123574), (902, 89872), (1096, 73964), (1312, 61787), (1507, 53792), (1681, 48224), (1804, 44936), (2192, 36982), (3014, 26896), (3362, 24112), (3608, 22468), (4384, 18491), (5617, 14432), (6028, 13448), (6724, 12056), (7216, 11234)]