20637268

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19581932

約数列:

[1, 2, 4, 19, 37, 38, 41, 74, 76, 82, 148, 164, 179, 358, 703, 716, 779, 1406, 1517, 1558, 2812, 3034, 3116, 3401, 6068, 6623, 6802, 7339, 13246, 13604, 14678, 26492, 28823, 29356, 57646, 115292, 125837, 139441, 251674, 271543, 278882, 503348, 543086, 557764, 1086172, 5159317, 10318634, 20637268]

約数ペア:

[(1, 20637268), (2, 10318634), (4, 5159317), (19, 1086172), (37, 557764), (38, 543086), (41, 503348), (74, 278882), (76, 271543), (82, 251674), (148, 139441), (164, 125837), (179, 115292), (358, 57646), (703, 29356), (716, 28823), (779, 26492), (1406, 14678), (1517, 13604), (1558, 13246), (2812, 7339), (3034, 6802), (3116, 6623), (3401, 6068)]