20168960

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2251}}^1$

素因数の和:2279

約数の個数: 72

約数和(自身を含む): 55237056

約数和(自身を除く): 35068096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2251, 4480, 4502, 8960, 9004, 11255, 15757, 18008, 22510, 31514, 36016, 45020, 63028, 72032, 78785, 90040, 126056, 144064, 157570, 180080, 252112, 288128, 315140, 360160, 504224, 576256, 630280, 720320, 1008448, 1260560, 1440640, 2016896, 2521120, 2881280, 4033792, 5042240, 10084480, 20168960]

約数ペア:

[(1, 20168960), (2, 10084480), (4, 5042240), (5, 4033792), (7, 2881280), (8, 2521120), (10, 2016896), (14, 1440640), (16, 1260560), (20, 1008448), (28, 720320), (32, 630280), (35, 576256), (40, 504224), (56, 360160), (64, 315140), (70, 288128), (80, 252112), (112, 180080), (128, 157570), (140, 144064), (160, 126056), (224, 90040), (256, 78785), (280, 72032), (320, 63028), (448, 45020), (560, 36016), (640, 31514), (896, 22510), (1120, 18008), (1280, 15757), (1792, 11255), (2240, 9004), (2251, 8960), (4480, 4502)]