20402278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1552

約数の個数: 32

約数和(自身を含む): 36046080

約数和(自身を除く): 15643802

約数列:

[1, 2, 13, 17, 26, 31, 34, 62, 221, 403, 442, 527, 806, 1054, 1489, 2978, 6851, 13702, 19357, 25313, 38714, 46159, 50626, 92318, 329069, 600067, 658138, 784703, 1200134, 1569406, 10201139, 20402278]

約数ペア:

[(1, 20402278), (2, 10201139), (13, 1569406), (17, 1200134), (26, 784703), (31, 658138), (34, 600067), (62, 329069), (221, 92318), (403, 50626), (442, 46159), (527, 38714), (806, 25313), (1054, 19357), (1489, 13702), (2978, 6851)]