189742040

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{9661}}^1$

素因数の和:10163

約数の個数: 32

約数和(自身を含む): 427833360

約数和(自身を除く): 238091320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9661, 9820, 19322, 19640, 38644, 48305, 77288, 96610, 193220, 386440, 4743551, 9487102, 18974204, 23717755, 37948408, 47435510, 94871020, 189742040]

約数ペア:

[(1, 189742040), (2, 94871020), (4, 47435510), (5, 37948408), (8, 23717755), (10, 18974204), (20, 9487102), (40, 4743551), (491, 386440), (982, 193220), (1964, 96610), (2455, 77288), (3928, 48305), (4910, 38644), (9661, 19640), (9820, 19322)]