638789688

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{521887}}^1$

素因数の和:521916

約数の個数: 48

約数和(自身を含む): 1831826880

約数和(自身を除く): 1193037192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 306, 408, 612, 1224, 521887, 1043774, 1565661, 2087548, 3131322, 4175096, 4696983, 6262644, 8872079, 9393966, 12525288, 17744158, 18787932, 26616237, 35488316, 37575864, 53232474, 70976632, 79848711, 106464948, 159697422, 212929896, 319394844, 638789688]

約数ペア:

[(1, 638789688), (2, 319394844), (3, 212929896), (4, 159697422), (6, 106464948), (8, 79848711), (9, 70976632), (12, 53232474), (17, 37575864), (18, 35488316), (24, 26616237), (34, 18787932), (36, 17744158), (51, 12525288), (68, 9393966), (72, 8872079), (102, 6262644), (136, 4696983), (153, 4175096), (204, 3131322), (306, 2087548), (408, 1565661), (612, 1043774), (1224, 521887)]