2640740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:224

約数の個数: 36

約数和(自身を含む): 5779956

約数和(自身を除く): 3139216

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 580, 628, 785, 841, 1570, 1682, 3140, 3364, 4205, 4553, 8410, 9106, 16820, 18212, 22765, 45530, 91060, 132037, 264074, 528148, 660185, 1320370, 2640740]

約数ペア:

[(1, 2640740), (2, 1320370), (4, 660185), (5, 528148), (10, 264074), (20, 132037), (29, 91060), (58, 45530), (116, 22765), (145, 18212), (157, 16820), (290, 9106), (314, 8410), (580, 4553), (628, 4205), (785, 3364), (841, 3140), (1570, 1682)]