79781240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25903}}^1$

素因数の和:25932

約数の個数: 64

約数和(自身を含む): 223810560

約数和(自身を除く): 144029320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 25903, 51806, 103612, 129515, 181321, 207224, 259030, 284933, 362642, 518060, 569866, 725284, 906605, 1036120, 1139732, 1424665, 1450568, 1813210, 1994531, 2279464, 2849330, 3626420, 3989062, 5698660, 7252840, 7978124, 9972655, 11397320, 15956248, 19945310, 39890620, 79781240]

約数ペア:

[(1, 79781240), (2, 39890620), (4, 19945310), (5, 15956248), (7, 11397320), (8, 9972655), (10, 7978124), (11, 7252840), (14, 5698660), (20, 3989062), (22, 3626420), (28, 2849330), (35, 2279464), (40, 1994531), (44, 1813210), (55, 1450568), (56, 1424665), (70, 1139732), (77, 1036120), (88, 906605), (110, 725284), (140, 569866), (154, 518060), (220, 362642), (280, 284933), (308, 259030), (385, 207224), (440, 181321), (616, 129515), (770, 103612), (1540, 51806), (3080, 25903)]