20609704

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 39673800

約数和(自身を除く): 19064096

約数列:

[1, 2, 4, 8, 61, 122, 157, 244, 269, 314, 488, 538, 628, 1076, 1256, 2152, 9577, 16409, 19154, 32818, 38308, 42233, 65636, 76616, 84466, 131272, 168932, 337864, 2576213, 5152426, 10304852, 20609704]

約数ペア:

[(1, 20609704), (2, 10304852), (4, 5152426), (8, 2576213), (61, 337864), (122, 168932), (157, 131272), (244, 84466), (269, 76616), (314, 65636), (488, 42233), (538, 38308), (628, 32818), (1076, 19154), (1256, 16409), (2152, 9577)]