31489460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 70156800

約数和(自身を除く): 38667340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 346, 380, 479, 692, 865, 958, 1730, 1916, 2395, 3287, 3460, 4790, 6574, 9101, 9580, 13148, 16435, 18202, 32870, 36404, 45505, 65740, 82867, 91010, 165734, 182020, 331468, 414335, 828670, 1574473, 1657340, 3148946, 6297892, 7872365, 15744730, 31489460]

約数ペア:

[(1, 31489460), (2, 15744730), (4, 7872365), (5, 6297892), (10, 3148946), (19, 1657340), (20, 1574473), (38, 828670), (76, 414335), (95, 331468), (173, 182020), (190, 165734), (346, 91010), (380, 82867), (479, 65740), (692, 45505), (865, 36404), (958, 32870), (1730, 18202), (1916, 16435), (2395, 13148), (3287, 9580), (3460, 9101), (4790, 6574)]