20115248

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1163}}^1$

素因数の和:1241

約数の個数: 40

約数和(自身を含む): 41568768

約数和(自身を除く): 21453520

約数列:

[1, 2, 4, 8, 16, 23, 46, 47, 92, 94, 184, 188, 368, 376, 752, 1081, 1163, 2162, 2326, 4324, 4652, 8648, 9304, 17296, 18608, 26749, 53498, 54661, 106996, 109322, 213992, 218644, 427984, 437288, 874576, 1257203, 2514406, 5028812, 10057624, 20115248]

約数ペア:

[(1, 20115248), (2, 10057624), (4, 5028812), (8, 2514406), (16, 1257203), (23, 874576), (46, 437288), (47, 427984), (92, 218644), (94, 213992), (184, 109322), (188, 106996), (368, 54661), (376, 53498), (752, 26749), (1081, 18608), (1163, 17296), (2162, 9304), (2326, 8648), (4324, 4652)]