20480096

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{541}}^1$

素因数の和:584

約数の個数: 72

約数和(自身を含む): 49989744

約数和(自身を除く): 29509648

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 169, 182, 208, 224, 338, 364, 416, 541, 676, 728, 1082, 1183, 1352, 1456, 2164, 2366, 2704, 2912, 3787, 4328, 4732, 5408, 7033, 7574, 8656, 9464, 14066, 15148, 17312, 18928, 28132, 30296, 37856, 49231, 56264, 60592, 91429, 98462, 112528, 121184, 182858, 196924, 225056, 365716, 393848, 640003, 731432, 787696, 1280006, 1462864, 1575392, 2560012, 2925728, 5120024, 10240048, 20480096]

約数ペア:

[(1, 20480096), (2, 10240048), (4, 5120024), (7, 2925728), (8, 2560012), (13, 1575392), (14, 1462864), (16, 1280006), (26, 787696), (28, 731432), (32, 640003), (52, 393848), (56, 365716), (91, 225056), (104, 196924), (112, 182858), (169, 121184), (182, 112528), (208, 98462), (224, 91429), (338, 60592), (364, 56264), (416, 49231), (541, 37856), (676, 30296), (728, 28132), (1082, 18928), (1183, 17312), (1352, 15148), (1456, 14066), (2164, 9464), (2366, 8656), (2704, 7574), (2912, 7033), (3787, 5408), (4328, 4732)]