85857520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1103}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 229985280

約数和(自身を除く): 144127760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1103, 1112, 1390, 1946, 2206, 2224, 2780, 3892, 4412, 4865, 5515, 5560, 7721, 7784, 8824, 9730, 11030, 11120, 15442, 15568, 17648, 19460, 22060, 30884, 38605, 38920, 44120, 61768, 77210, 77840, 88240, 123536, 153317, 154420, 306634, 308840, 613268, 617680, 766585, 1073219, 1226536, 1533170, 2146438, 2453072, 3066340, 4292876, 5366095, 6132680, 8585752, 10732190, 12265360, 17171504, 21464380, 42928760, 85857520]

約数ペア:

[(1, 85857520), (2, 42928760), (4, 21464380), (5, 17171504), (7, 12265360), (8, 10732190), (10, 8585752), (14, 6132680), (16, 5366095), (20, 4292876), (28, 3066340), (35, 2453072), (40, 2146438), (56, 1533170), (70, 1226536), (80, 1073219), (112, 766585), (139, 617680), (140, 613268), (278, 308840), (280, 306634), (556, 154420), (560, 153317), (695, 123536), (973, 88240), (1103, 77840), (1112, 77210), (1390, 61768), (1946, 44120), (2206, 38920), (2224, 38605), (2780, 30884), (3892, 22060), (4412, 19460), (4865, 17648), (5515, 15568), (5560, 15442), (7721, 11120), (7784, 11030), (8824, 9730)]