81313360

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{3469}}^1$

素因数の和:3775

約数の個数: 40

約数和(自身を含む): 189753480

約数和(自身を除く): 108440120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 1172, 1465, 2344, 2930, 3469, 4688, 5860, 6938, 11720, 13876, 17345, 23440, 27752, 34690, 55504, 69380, 138760, 277520, 1016417, 2032834, 4065668, 5082085, 8131336, 10164170, 16262672, 20328340, 40656680, 81313360]

約数ペア:

[(1, 81313360), (2, 40656680), (4, 20328340), (5, 16262672), (8, 10164170), (10, 8131336), (16, 5082085), (20, 4065668), (40, 2032834), (80, 1016417), (293, 277520), (586, 138760), (1172, 69380), (1465, 55504), (2344, 34690), (2930, 27752), (3469, 23440), (4688, 17345), (5860, 13876), (6938, 11720)]