31869280

素因数分解:

$2^5\times 5^1\times {\mathrm{409}}^1\times {\mathrm{487}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 75630240

約数和(自身を除く): 43760960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 409, 487, 818, 974, 1636, 1948, 2045, 2435, 3272, 3896, 4090, 4870, 6544, 7792, 8180, 9740, 13088, 15584, 16360, 19480, 32720, 38960, 65440, 77920, 199183, 398366, 796732, 995915, 1593464, 1991830, 3186928, 3983660, 6373856, 7967320, 15934640, 31869280]

約数ペア:

[(1, 31869280), (2, 15934640), (4, 7967320), (5, 6373856), (8, 3983660), (10, 3186928), (16, 1991830), (20, 1593464), (32, 995915), (40, 796732), (80, 398366), (160, 199183), (409, 77920), (487, 65440), (818, 38960), (974, 32720), (1636, 19480), (1948, 16360), (2045, 15584), (2435, 13088), (3272, 9740), (3896, 8180), (4090, 7792), (4870, 6544)]