81560752

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 203320320

約数和(自身を除く): 121759568

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 139, 169, 182, 208, 217, 248, 278, 338, 364, 403, 434, 496, 556, 676, 728, 806, 868, 973, 1112, 1183, 1352, 1456, 1612, 1736, 1807, 1946, 2224, 2366, 2704, 2821, 3224, 3472, 3614, 3892, 4309, 4732, 5239, 5642, 6448, 7228, 7784, 8618, 9464, 10478, 11284, 12649, 14456, 15568, 17236, 18928, 20956, 22568, 23491, 25298, 28912, 30163, 34472, 36673, 41912, 45136, 46982, 50596, 56017, 60326, 68944, 73346, 83824, 93964, 101192, 112034, 120652, 146692, 164437, 187928, 202384, 224068, 241304, 293384, 328874, 375856, 392119, 448136, 482608, 586768, 657748, 728221, 784238, 896272, 1315496, 1456442, 1568476, 2630992, 2912884, 3136952, 5097547, 5825768, 6273904, 10195094, 11651536, 20390188, 40780376, 81560752]

約数ペア:

[(1, 81560752), (2, 40780376), (4, 20390188), (7, 11651536), (8, 10195094), (13, 6273904), (14, 5825768), (16, 5097547), (26, 3136952), (28, 2912884), (31, 2630992), (52, 1568476), (56, 1456442), (62, 1315496), (91, 896272), (104, 784238), (112, 728221), (124, 657748), (139, 586768), (169, 482608), (182, 448136), (208, 392119), (217, 375856), (248, 328874), (278, 293384), (338, 241304), (364, 224068), (403, 202384), (434, 187928), (496, 164437), (556, 146692), (676, 120652), (728, 112034), (806, 101192), (868, 93964), (973, 83824), (1112, 73346), (1183, 68944), (1352, 60326), (1456, 56017), (1612, 50596), (1736, 46982), (1807, 45136), (1946, 41912), (2224, 36673), (2366, 34472), (2704, 30163), (2821, 28912), (3224, 25298), (3472, 23491), (3614, 22568), (3892, 20956), (4309, 18928), (4732, 17236), (5239, 15568), (5642, 14456), (6448, 12649), (7228, 11284), (7784, 10478), (8618, 9464)]