20820170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6917}}^1$

素因数の和:6974

約数の個数: 32

約数和(自身を含む): 43832448

約数和(自身を除く): 23012278

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6917, 13834, 34585, 48419, 69170, 96838, 242095, 297431, 484190, 594862, 1487155, 2082017, 2974310, 4164034, 10410085, 20820170]

約数ペア:

[(1, 20820170), (2, 10410085), (5, 4164034), (7, 2974310), (10, 2082017), (14, 1487155), (35, 594862), (43, 484190), (70, 297431), (86, 242095), (215, 96838), (301, 69170), (430, 48419), (602, 34585), (1505, 13834), (3010, 6917)]