640836

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{2543}}^1$

素因数の和:2560

約数の個数: 36

約数和(自身を含む): 1852032

約数和(自身を除く): 1211196

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 2543, 5086, 7629, 10172, 15258, 17801, 22887, 30516, 35602, 45774, 53403, 71204, 91548, 106806, 160209, 213612, 320418, 640836]

約数ペア:

[(1, 640836), (2, 320418), (3, 213612), (4, 160209), (6, 106806), (7, 91548), (9, 71204), (12, 53403), (14, 45774), (18, 35602), (21, 30516), (28, 22887), (36, 17801), (42, 15258), (63, 10172), (84, 7629), (126, 5086), (252, 2543)]