20403376

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2719}}^1$

素因数の和:2801

約数の個数: 40

約数和(自身を含む): 45870080

約数和(自身を除く): 25466704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 268, 469, 536, 938, 1072, 1876, 2719, 3752, 5438, 7504, 10876, 19033, 21752, 38066, 43504, 76132, 152264, 182173, 304528, 364346, 728692, 1275211, 1457384, 2550422, 2914768, 5100844, 10201688, 20403376]

約数ペア:

[(1, 20403376), (2, 10201688), (4, 5100844), (7, 2914768), (8, 2550422), (14, 1457384), (16, 1275211), (28, 728692), (56, 364346), (67, 304528), (112, 182173), (134, 152264), (268, 76132), (469, 43504), (536, 38066), (938, 21752), (1072, 19033), (1876, 10876), (2719, 7504), (3752, 5438)]