20218302020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{521359}}^1$

素因数の和:521652

約数の個数: 48

約数和(自身を含む): 48699194880

約数和(自身を除く): 28480892860

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, 521359, 1042718, 2085436, 2606795, 3649513, 5213590, 7299026, 10427180, 14598052, 18247565, 36495130, 72990260, 144416443, 288832886, 577665772, 722082215, 1010915101, 1444164430, 2021830202, 2888328860, 4043660404, 5054575505, 10109151010, 20218302020]

約数ペア:

[(1, 20218302020), (2, 10109151010), (4, 5054575505), (5, 4043660404), (7, 2888328860), (10, 2021830202), (14, 1444164430), (20, 1010915101), (28, 722082215), (35, 577665772), (70, 288832886), (140, 144416443), (277, 72990260), (554, 36495130), (1108, 18247565), (1385, 14598052), (1939, 10427180), (2770, 7299026), (3878, 5213590), (5540, 3649513), (7756, 2606795), (9695, 2085436), (19390, 1042718), (38780, 521359)]