990905279

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{683}}^1$

素因数の和:959

約数の個数: 32

約数和(自身を含む): 1241049600

約数和(自身を除く): 250144321

約数列:

[1, 7, 13, 91, 107, 149, 683, 749, 1043, 1391, 1937, 4781, 8879, 9737, 13559, 15943, 62153, 73081, 101767, 111601, 207259, 511567, 712369, 950053, 1322971, 1450813, 6650371, 9260797, 10889069, 76223483, 141557897, 990905279]

約数ペア:

[(1, 990905279), (7, 141557897), (13, 76223483), (91, 10889069), (107, 9260797), (149, 6650371), (683, 1450813), (749, 1322971), (1043, 950053), (1391, 712369), (1937, 511567), (4781, 207259), (8879, 111601), (9737, 101767), (13559, 73081), (15943, 62153)]