31249960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{479}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 80870400

約数和(自身を除く): 49620440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 280, 466, 479, 932, 958, 1165, 1631, 1864, 1916, 2330, 2395, 3262, 3353, 3832, 4660, 4790, 6524, 6706, 8155, 9320, 9580, 13048, 13412, 16310, 16765, 19160, 26824, 32620, 33530, 65240, 67060, 111607, 134120, 223214, 446428, 558035, 781249, 892856, 1116070, 1562498, 2232140, 3124996, 3906245, 4464280, 6249992, 7812490, 15624980, 31249960]

約数ペア:

[(1, 31249960), (2, 15624980), (4, 7812490), (5, 6249992), (7, 4464280), (8, 3906245), (10, 3124996), (14, 2232140), (20, 1562498), (28, 1116070), (35, 892856), (40, 781249), (56, 558035), (70, 446428), (140, 223214), (233, 134120), (280, 111607), (466, 67060), (479, 65240), (932, 33530), (958, 32620), (1165, 26824), (1631, 19160), (1864, 16765), (1916, 16310), (2330, 13412), (2395, 13048), (3262, 9580), (3353, 9320), (3832, 8155), (4660, 6706), (4790, 6524)]