21124384000

素因数分解:

$2^8\times 5^3\times {\mathrm{660137}}^1$

素因数の和:660168

約数の個数: 72

約数和(自身を含む): 52623560808

約数和(自身を除く): 31499176808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 3200, 4000, 6400, 8000, 16000, 32000, 660137, 1320274, 2640548, 3300685, 5281096, 6601370, 10562192, 13202740, 16503425, 21124384, 26405480, 33006850, 42248768, 52810960, 66013700, 82517125, 84497536, 105621920, 132027400, 165034250, 168995072, 211243840, 264054800, 330068500, 422487680, 528109600, 660137000, 844975360, 1056219200, 1320274000, 2112438400, 2640548000, 4224876800, 5281096000, 10562192000, 21124384000]

約数ペア:

[(1, 21124384000), (2, 10562192000), (4, 5281096000), (5, 4224876800), (8, 2640548000), (10, 2112438400), (16, 1320274000), (20, 1056219200), (25, 844975360), (32, 660137000), (40, 528109600), (50, 422487680), (64, 330068500), (80, 264054800), (100, 211243840), (125, 168995072), (128, 165034250), (160, 132027400), (200, 105621920), (250, 84497536), (256, 82517125), (320, 66013700), (400, 52810960), (500, 42248768), (640, 33006850), (800, 26405480), (1000, 21124384), (1280, 16503425), (1600, 13202740), (2000, 10562192), (3200, 6601370), (4000, 5281096), (6400, 3300685), (8000, 2640548), (16000, 1320274), (32000, 660137)]