641625280

素因数分解:

$2^6\times 5^1\times {\mathrm{2005079}}^1$

素因数の和:2005096

約数の個数: 28

約数和(自身を含む): 1527870960

約数和(自身を除く): 886245680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2005079, 4010158, 8020316, 10025395, 16040632, 20050790, 32081264, 40101580, 64162528, 80203160, 128325056, 160406320, 320812640, 641625280]

約数ペア:

[(1, 641625280), (2, 320812640), (4, 160406320), (5, 128325056), (8, 80203160), (10, 64162528), (16, 40101580), (20, 32081264), (32, 20050790), (40, 16040632), (64, 10025395), (80, 8020316), (160, 4010158), (320, 2005079)]