20542648

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 26977352

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 43, 56, 76, 86, 133, 152, 172, 266, 301, 344, 449, 532, 602, 817, 898, 1064, 1204, 1634, 1796, 2408, 3143, 3268, 3592, 5719, 6286, 6536, 8531, 11438, 12572, 17062, 19307, 22876, 25144, 34124, 38614, 45752, 59717, 68248, 77228, 119434, 135149, 154456, 238868, 270298, 366833, 477736, 540596, 733666, 1081192, 1467332, 2567831, 2934664, 5135662, 10271324, 20542648]

約数ペア:

[(1, 20542648), (2, 10271324), (4, 5135662), (7, 2934664), (8, 2567831), (14, 1467332), (19, 1081192), (28, 733666), (38, 540596), (43, 477736), (56, 366833), (76, 270298), (86, 238868), (133, 154456), (152, 135149), (172, 119434), (266, 77228), (301, 68248), (344, 59717), (449, 45752), (532, 38614), (602, 34124), (817, 25144), (898, 22876), (1064, 19307), (1204, 17062), (1634, 12572), (1796, 11438), (2408, 8531), (3143, 6536), (3268, 6286), (3592, 5719)]