400153280

素因数分解:

$2^6\times 5^1\times {\mathrm{1250479}}^1$

素因数の和:1250496

約数の個数: 28

約数和(自身を含む): 952865760

約数和(自身を除く): 552712480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1250479, 2500958, 5001916, 6252395, 10003832, 12504790, 20007664, 25009580, 40015328, 50019160, 80030656, 100038320, 200076640, 400153280]

約数ペア:

[(1, 400153280), (2, 200076640), (4, 100038320), (5, 80030656), (8, 50019160), (10, 40015328), (16, 25009580), (20, 20007664), (32, 12504790), (40, 10003832), (64, 6252395), (80, 5001916), (160, 2500958), (320, 1250479)]