4005256220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28608973}}^1$

素因数の和:28608989

約数の個数: 24

約数和(自身を含む): 9612615264

約数和(自身を除く): 5607359044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28608973, 57217946, 114435892, 143044865, 200262811, 286089730, 400525622, 572179460, 801051244, 1001314055, 2002628110, 4005256220]

約数ペア:

[(1, 4005256220), (2, 2002628110), (4, 1001314055), (5, 801051244), (7, 572179460), (10, 400525622), (14, 286089730), (20, 200262811), (28, 143044865), (35, 114435892), (70, 57217946), (140, 28608973)]