39702920

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4451}}^1$

素因数の和:4685

約数の個数: 32

約数和(自身を含む): 89752320

約数和(自身を除く): 50049400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4451, 4460, 8902, 8920, 17804, 22255, 35608, 44510, 89020, 178040, 992573, 1985146, 3970292, 4962865, 7940584, 9925730, 19851460, 39702920]

約数ペア:

[(1, 39702920), (2, 19851460), (4, 9925730), (5, 7940584), (8, 4962865), (10, 3970292), (20, 1985146), (40, 992573), (223, 178040), (446, 89020), (892, 44510), (1115, 35608), (1784, 22255), (2230, 17804), (4451, 8920), (4460, 8902)]