1256221260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{997001}}^1$

素因数の和:997023

約数の個数: 72

約数和(自身を含む): 4354904736

約数和(自身を除く): 3098683476

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 997001, 1994002, 2991003, 3988004, 4985005, 5982006, 6979007, 8973009, 9970010, 11964012, 13958014, 14955015, 17946018, 19940020, 20937021, 27916028, 29910030, 34895035, 35892036, 41874042, 44865045, 59820060, 62811063, 69790070, 83748084, 89730090, 104685105, 125622126, 139580140, 179460180, 209370210, 251244252, 314055315, 418740420, 628110630, 1256221260]

約数ペア:

[(1, 1256221260), (2, 628110630), (3, 418740420), (4, 314055315), (5, 251244252), (6, 209370210), (7, 179460180), (9, 139580140), (10, 125622126), (12, 104685105), (14, 89730090), (15, 83748084), (18, 69790070), (20, 62811063), (21, 59820060), (28, 44865045), (30, 41874042), (35, 35892036), (36, 34895035), (42, 29910030), (45, 27916028), (60, 20937021), (63, 19940020), (70, 17946018), (84, 14955015), (90, 13958014), (105, 11964012), (126, 9970010), (140, 8973009), (180, 6979007), (210, 5982006), (252, 4985005), (315, 3988004), (420, 2991003), (630, 1994002), (1260, 997001)]