19733792

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 72

約数和(自身を含む): 43579620

約数和(自身を除く): 23845828

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 89, 104, 164, 169, 178, 208, 328, 338, 356, 416, 533, 656, 676, 712, 1066, 1157, 1312, 1352, 1424, 2132, 2314, 2704, 2848, 3649, 4264, 4628, 5408, 6929, 7298, 8528, 9256, 13858, 14596, 15041, 17056, 18512, 27716, 29192, 30082, 37024, 47437, 55432, 58384, 60164, 94874, 110864, 116768, 120328, 189748, 221728, 240656, 379496, 481312, 616681, 758992, 1233362, 1517984, 2466724, 4933448, 9866896, 19733792]

約数ペア:

[(1, 19733792), (2, 9866896), (4, 4933448), (8, 2466724), (13, 1517984), (16, 1233362), (26, 758992), (32, 616681), (41, 481312), (52, 379496), (82, 240656), (89, 221728), (104, 189748), (164, 120328), (169, 116768), (178, 110864), (208, 94874), (328, 60164), (338, 58384), (356, 55432), (416, 47437), (533, 37024), (656, 30082), (676, 29192), (712, 27716), (1066, 18512), (1157, 17056), (1312, 15041), (1352, 14596), (1424, 13858), (2132, 9256), (2314, 8528), (2704, 7298), (2848, 6929), (3649, 5408), (4264, 4628)]