40337920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{2251}}^1$

素因数の和:2281

約数の個数: 80

約数和(自身を含む): 110582208

約数和(自身を除く): 70244288

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, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2251, 2560, 3584, 4480, 4502, 8960, 9004, 11255, 15757, 17920, 18008, 22510, 31514, 36016, 45020, 63028, 72032, 78785, 90040, 126056, 144064, 157570, 180080, 252112, 288128, 315140, 360160, 504224, 576256, 630280, 720320, 1008448, 1152512, 1260560, 1440640, 2016896, 2521120, 2881280, 4033792, 5042240, 5762560, 8067584, 10084480, 20168960, 40337920]

約数ペア:

[(1, 40337920), (2, 20168960), (4, 10084480), (5, 8067584), (7, 5762560), (8, 5042240), (10, 4033792), (14, 2881280), (16, 2521120), (20, 2016896), (28, 1440640), (32, 1260560), (35, 1152512), (40, 1008448), (56, 720320), (64, 630280), (70, 576256), (80, 504224), (112, 360160), (128, 315140), (140, 288128), (160, 252112), (224, 180080), (256, 157570), (280, 144064), (320, 126056), (448, 90040), (512, 78785), (560, 72032), (640, 63028), (896, 45020), (1120, 36016), (1280, 31514), (1792, 22510), (2240, 18008), (2251, 17920), (2560, 15757), (3584, 11255), (4480, 9004), (4502, 8960)]