81379520

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11057}}^1$

素因数の和:11097

約数の個数: 56

約数和(自身を含む): 202228704

約数和(自身を除く): 120849184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 3680, 7360, 11057, 22114, 44228, 55285, 88456, 110570, 176912, 221140, 254311, 353824, 442280, 508622, 707648, 884560, 1017244, 1271555, 1769120, 2034488, 2543110, 3538240, 4068976, 5086220, 8137952, 10172440, 16275904, 20344880, 40689760, 81379520]

約数ペア:

[(1, 81379520), (2, 40689760), (4, 20344880), (5, 16275904), (8, 10172440), (10, 8137952), (16, 5086220), (20, 4068976), (23, 3538240), (32, 2543110), (40, 2034488), (46, 1769120), (64, 1271555), (80, 1017244), (92, 884560), (115, 707648), (160, 508622), (184, 442280), (230, 353824), (320, 254311), (368, 221140), (460, 176912), (736, 110570), (920, 88456), (1472, 55285), (1840, 44228), (3680, 22114), (7360, 11057)]