20533088

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 41966064

約数和(自身を除く): 21432976

約数列:

[1, 2, 4, 8, 16, 32, 61, 67, 122, 134, 157, 244, 268, 314, 488, 536, 628, 976, 1072, 1256, 1952, 2144, 2512, 4087, 5024, 8174, 9577, 10519, 16348, 19154, 21038, 32696, 38308, 42076, 65392, 76616, 84152, 130784, 153232, 168304, 306464, 336608, 641659, 1283318, 2566636, 5133272, 10266544, 20533088]

約数ペア:

[(1, 20533088), (2, 10266544), (4, 5133272), (8, 2566636), (16, 1283318), (32, 641659), (61, 336608), (67, 306464), (122, 168304), (134, 153232), (157, 130784), (244, 84152), (268, 76616), (314, 65392), (488, 42076), (536, 38308), (628, 32696), (976, 21038), (1072, 19154), (1256, 16348), (1952, 10519), (2144, 9577), (2512, 8174), (4087, 5024)]