20742512

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:190

約数の個数: 80

約数和(自身を含む): 48449280

約数和(自身を除く): 27706768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 59, 73, 86, 112, 118, 146, 172, 236, 292, 301, 344, 413, 472, 511, 584, 602, 688, 826, 944, 1022, 1168, 1204, 1652, 2044, 2408, 2537, 3139, 3304, 4088, 4307, 4816, 5074, 6278, 6608, 8176, 8614, 10148, 12556, 17228, 17759, 20296, 21973, 25112, 30149, 34456, 35518, 40592, 43946, 50224, 60298, 68912, 71036, 87892, 120596, 142072, 175784, 185201, 241192, 284144, 351568, 370402, 482384, 740804, 1296407, 1481608, 2592814, 2963216, 5185628, 10371256, 20742512]

約数ペア:

[(1, 20742512), (2, 10371256), (4, 5185628), (7, 2963216), (8, 2592814), (14, 1481608), (16, 1296407), (28, 740804), (43, 482384), (56, 370402), (59, 351568), (73, 284144), (86, 241192), (112, 185201), (118, 175784), (146, 142072), (172, 120596), (236, 87892), (292, 71036), (301, 68912), (344, 60298), (413, 50224), (472, 43946), (511, 40592), (584, 35518), (602, 34456), (688, 30149), (826, 25112), (944, 21973), (1022, 20296), (1168, 17759), (1204, 17228), (1652, 12556), (2044, 10148), (2408, 8614), (2537, 8176), (3139, 6608), (3304, 6278), (4088, 5074), (4307, 4816)]