20610784

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 21967136

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 79, 124, 158, 248, 263, 316, 496, 526, 632, 992, 1052, 1264, 2104, 2449, 2528, 4208, 4898, 8153, 8416, 9796, 16306, 19592, 20777, 32612, 39184, 41554, 65224, 78368, 83108, 130448, 166216, 260896, 332432, 644087, 664864, 1288174, 2576348, 5152696, 10305392, 20610784]

約数ペア:

[(1, 20610784), (2, 10305392), (4, 5152696), (8, 2576348), (16, 1288174), (31, 664864), (32, 644087), (62, 332432), (79, 260896), (124, 166216), (158, 130448), (248, 83108), (263, 78368), (316, 65224), (496, 41554), (526, 39184), (632, 32612), (992, 20777), (1052, 19592), (1264, 16306), (2104, 9796), (2449, 8416), (2528, 8153), (4208, 4898)]