65891560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1693}}^1$

素因数の和:1850

約数の個数: 64

約数和(自身を含む): 170755200

約数和(自身を除く): 104863640

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, 1693, 1946, 2780, 3386, 3892, 4865, 5560, 6772, 7784, 8465, 9730, 11851, 13544, 16930, 19460, 23702, 33860, 38920, 47404, 59255, 67720, 94808, 118510, 235327, 237020, 470654, 474040, 941308, 1176635, 1647289, 1882616, 2353270, 3294578, 4706540, 6589156, 8236445, 9413080, 13178312, 16472890, 32945780, 65891560]

約数ペア:

[(1, 65891560), (2, 32945780), (4, 16472890), (5, 13178312), (7, 9413080), (8, 8236445), (10, 6589156), (14, 4706540), (20, 3294578), (28, 2353270), (35, 1882616), (40, 1647289), (56, 1176635), (70, 941308), (139, 474040), (140, 470654), (278, 237020), (280, 235327), (556, 118510), (695, 94808), (973, 67720), (1112, 59255), (1390, 47404), (1693, 38920), (1946, 33860), (2780, 23702), (3386, 19460), (3892, 16930), (4865, 13544), (5560, 11851), (6772, 9730), (7784, 8465)]