86441320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2221}}^1$

素因数の和:2378

約数の個数: 64

約数和(自身を含む): 223977600

約数和(自身を除く): 137536280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2221, 2780, 3892, 4442, 4865, 5560, 7784, 8884, 9730, 11105, 15547, 17768, 19460, 22210, 31094, 38920, 44420, 62188, 77735, 88840, 124376, 155470, 308719, 310940, 617438, 621880, 1234876, 1543595, 2161033, 2469752, 3087190, 4322066, 6174380, 8644132, 10805165, 12348760, 17288264, 21610330, 43220660, 86441320]

約数ペア:

[(1, 86441320), (2, 43220660), (4, 21610330), (5, 17288264), (7, 12348760), (8, 10805165), (10, 8644132), (14, 6174380), (20, 4322066), (28, 3087190), (35, 2469752), (40, 2161033), (56, 1543595), (70, 1234876), (139, 621880), (140, 617438), (278, 310940), (280, 308719), (556, 155470), (695, 124376), (973, 88840), (1112, 77735), (1390, 62188), (1946, 44420), (2221, 38920), (2780, 31094), (3892, 22210), (4442, 19460), (4865, 17768), (5560, 15547), (7784, 11105), (8884, 9730)]