20201006140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{520913}}^1$

素因数の和:521206

約数の個数: 48

約数和(自身を含む): 48657534912

約数和(自身を除く): 28456528772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1939, 2770, 3878, 5540, 7756, 9695, 19390, 38780, 520913, 1041826, 2083652, 2604565, 3646391, 5209130, 7292782, 10418260, 14585564, 18231955, 36463910, 72927820, 144292901, 288585802, 577171604, 721464505, 1010050307, 1442929010, 2020100614, 2885858020, 4040201228, 5050251535, 10100503070, 20201006140]

約数ペア:

[(1, 20201006140), (2, 10100503070), (4, 5050251535), (5, 4040201228), (7, 2885858020), (10, 2020100614), (14, 1442929010), (20, 1010050307), (28, 721464505), (35, 577171604), (70, 288585802), (140, 144292901), (277, 72927820), (554, 36463910), (1108, 18231955), (1385, 14585564), (1939, 10418260), (2770, 7292782), (3878, 5209130), (5540, 3646391), (7756, 2604565), (9695, 2083652), (19390, 1041826), (38780, 520913)]