26309920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1$

素因数の和:187

約数の個数: 144

約数和(自身を含む): 77474880

約数和(自身を除く): 51164960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 139, 140, 160, 169, 182, 208, 224, 260, 278, 280, 338, 364, 416, 455, 520, 556, 560, 676, 695, 728, 845, 910, 973, 1040, 1112, 1120, 1183, 1352, 1390, 1456, 1690, 1807, 1820, 1946, 2080, 2224, 2366, 2704, 2780, 2912, 3380, 3614, 3640, 3892, 4448, 4732, 4865, 5408, 5560, 5915, 6760, 7228, 7280, 7784, 9035, 9464, 9730, 11120, 11830, 12649, 13520, 14456, 14560, 15568, 18070, 18928, 19460, 22240, 23491, 23660, 25298, 27040, 28912, 31136, 36140, 37856, 38920, 46982, 47320, 50596, 57824, 63245, 72280, 77840, 93964, 94640, 101192, 117455, 126490, 144560, 155680, 164437, 187928, 189280, 202384, 234910, 252980, 289120, 328874, 375856, 404768, 469820, 505960, 657748, 751712, 822185, 939640, 1011920, 1315496, 1644370, 1879280, 2023840, 2630992, 3288740, 3758560, 5261984, 6577480, 13154960, 26309920]

約数ペア:

[(1, 26309920), (2, 13154960), (4, 6577480), (5, 5261984), (7, 3758560), (8, 3288740), (10, 2630992), (13, 2023840), (14, 1879280), (16, 1644370), (20, 1315496), (26, 1011920), (28, 939640), (32, 822185), (35, 751712), (40, 657748), (52, 505960), (56, 469820), (65, 404768), (70, 375856), (80, 328874), (91, 289120), (104, 252980), (112, 234910), (130, 202384), (139, 189280), (140, 187928), (160, 164437), (169, 155680), (182, 144560), (208, 126490), (224, 117455), (260, 101192), (278, 94640), (280, 93964), (338, 77840), (364, 72280), (416, 63245), (455, 57824), (520, 50596), (556, 47320), (560, 46982), (676, 38920), (695, 37856), (728, 36140), (845, 31136), (910, 28912), (973, 27040), (1040, 25298), (1112, 23660), (1120, 23491), (1183, 22240), (1352, 19460), (1390, 18928), (1456, 18070), (1690, 15568), (1807, 14560), (1820, 14456), (1946, 13520), (2080, 12649), (2224, 11830), (2366, 11120), (2704, 9730), (2780, 9464), (2912, 9035), (3380, 7784), (3614, 7280), (3640, 7228), (3892, 6760), (4448, 5915), (4732, 5560), (4865, 5408)]