20451676

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1039}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 44262400

約数和(自身を除く): 23810724

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 1036, 1039, 1406, 2078, 2812, 4156, 4921, 7273, 9842, 14546, 19684, 19741, 29092, 38443, 39482, 76886, 78964, 138187, 153772, 269101, 276374, 538202, 552748, 730417, 1076404, 1460834, 2921668, 5112919, 10225838, 20451676]

約数ペア:

[(1, 20451676), (2, 10225838), (4, 5112919), (7, 2921668), (14, 1460834), (19, 1076404), (28, 730417), (37, 552748), (38, 538202), (74, 276374), (76, 269101), (133, 153772), (148, 138187), (259, 78964), (266, 76886), (518, 39482), (532, 38443), (703, 29092), (1036, 19741), (1039, 19684), (1406, 14546), (2078, 9842), (2812, 7273), (4156, 4921)]