31393280

素因数分解:

$2^9\times 5^1\times {\mathrm{12263}}^1$

素因数の和:12286

約数の個数: 40

約数和(自身を含む): 75276432

約数和(自身を除く): 43883152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 12263, 24526, 49052, 61315, 98104, 122630, 196208, 245260, 392416, 490520, 784832, 981040, 1569664, 1962080, 3139328, 3924160, 6278656, 7848320, 15696640, 31393280]

約数ペア:

[(1, 31393280), (2, 15696640), (4, 7848320), (5, 6278656), (8, 3924160), (10, 3139328), (16, 1962080), (20, 1569664), (32, 981040), (40, 784832), (64, 490520), (80, 392416), (128, 245260), (160, 196208), (256, 122630), (320, 98104), (512, 61315), (640, 49052), (1280, 24526), (2560, 12263)]