40631680

素因数分解:

$2^7\times 5^1\times {\mathrm{63487}}^1$

素因数の和:63506

約数の個数: 32

約数和(自身を含む): 97136640

約数和(自身を除く): 56504960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63487, 126974, 253948, 317435, 507896, 634870, 1015792, 1269740, 2031584, 2539480, 4063168, 5078960, 8126336, 10157920, 20315840, 40631680]

約数ペア:

[(1, 40631680), (2, 20315840), (4, 10157920), (5, 8126336), (8, 5078960), (10, 4063168), (16, 2539480), (20, 2031584), (32, 1269740), (40, 1015792), (64, 634870), (80, 507896), (128, 317435), (160, 253948), (320, 126974), (640, 63487)]