19305020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19699}}^1$

素因数の和:19722

約数の個数: 36

約数和(自身を含む): 47161800

約数和(自身を除く): 27856780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19699, 39398, 78796, 98495, 137893, 196990, 275786, 393980, 551572, 689465, 965251, 1378930, 1930502, 2757860, 3861004, 4826255, 9652510, 19305020]

約数ペア:

[(1, 19305020), (2, 9652510), (4, 4826255), (5, 3861004), (7, 2757860), (10, 1930502), (14, 1378930), (20, 965251), (28, 689465), (35, 551572), (49, 393980), (70, 275786), (98, 196990), (140, 137893), (196, 98495), (245, 78796), (490, 39398), (980, 19699)]