20512586560

素因数分解:

$2^6\times 5^1\times {\mathrm{569}}^1\times {\mathrm{112657}}^1$

素因数の和:113243

約数の個数: 56

約数和(自身を含む): 48931875720

約数和(自身を除く): 28419289160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 569, 1138, 2276, 2845, 4552, 5690, 9104, 11380, 18208, 22760, 36416, 45520, 91040, 112657, 182080, 225314, 450628, 563285, 901256, 1126570, 1802512, 2253140, 3605024, 4506280, 7210048, 9012560, 18025120, 36050240, 64101833, 128203666, 256407332, 320509165, 512814664, 641018330, 1025629328, 1282036660, 2051258656, 2564073320, 4102517312, 5128146640, 10256293280, 20512586560]

約数ペア:

[(1, 20512586560), (2, 10256293280), (4, 5128146640), (5, 4102517312), (8, 2564073320), (10, 2051258656), (16, 1282036660), (20, 1025629328), (32, 641018330), (40, 512814664), (64, 320509165), (80, 256407332), (160, 128203666), (320, 64101833), (569, 36050240), (1138, 18025120), (2276, 9012560), (2845, 7210048), (4552, 4506280), (5690, 3605024), (9104, 2253140), (11380, 1802512), (18208, 1126570), (22760, 901256), (36416, 563285), (45520, 450628), (91040, 225314), (112657, 182080)]