340184440

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{17321}}^1$

素因数の和:17823

約数の個数: 32

約数和(自身を含む): 767018160

約数和(自身を除く): 426833720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 17321, 19640, 34642, 69284, 86605, 138568, 173210, 346420, 692840, 8504611, 17009222, 34018444, 42523055, 68036888, 85046110, 170092220, 340184440]

約数ペア:

[(1, 340184440), (2, 170092220), (4, 85046110), (5, 68036888), (8, 42523055), (10, 34018444), (20, 17009222), (40, 8504611), (491, 692840), (982, 346420), (1964, 173210), (2455, 138568), (3928, 86605), (4910, 69284), (9820, 34642), (17321, 19640)]