12687220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6971}}^1$

素因数の和:7000

約数の個数: 48

約数和(自身を含む): 32796288

約数和(自身を除く): 20109068

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 6971, 13942, 27884, 34855, 48797, 69710, 90623, 97594, 139420, 181246, 195188, 243985, 362492, 453115, 487970, 634361, 906230, 975940, 1268722, 1812460, 2537444, 3171805, 6343610, 12687220]

約数ペア:

[(1, 12687220), (2, 6343610), (4, 3171805), (5, 2537444), (7, 1812460), (10, 1268722), (13, 975940), (14, 906230), (20, 634361), (26, 487970), (28, 453115), (35, 362492), (52, 243985), (65, 195188), (70, 181246), (91, 139420), (130, 97594), (140, 90623), (182, 69710), (260, 48797), (364, 34855), (455, 27884), (910, 13942), (1820, 6971)]