15624980

素因数分解:

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

素因数の和:728

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 22114540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 479, 932, 958, 1165, 1631, 1916, 2330, 2395, 3262, 3353, 4660, 4790, 6524, 6706, 8155, 9580, 13412, 16310, 16765, 32620, 33530, 67060, 111607, 223214, 446428, 558035, 781249, 1116070, 1562498, 2232140, 3124996, 3906245, 7812490, 15624980]

約数ペア:

[(1, 15624980), (2, 7812490), (4, 3906245), (5, 3124996), (7, 2232140), (10, 1562498), (14, 1116070), (20, 781249), (28, 558035), (35, 446428), (70, 223214), (140, 111607), (233, 67060), (466, 33530), (479, 32620), (932, 16765), (958, 16310), (1165, 13412), (1631, 9580), (1916, 8155), (2330, 6706), (2395, 6524), (3262, 4790), (3353, 4660)]