257970560

素因数分解:

$2^7\times 5^1\times {\mathrm{403079}}^1$

素因数の和:403098

約数の個数: 32

約数和(自身を含む): 616712400

約数和(自身を除く): 358741840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 403079, 806158, 1612316, 2015395, 3224632, 4030790, 6449264, 8061580, 12898528, 16123160, 25797056, 32246320, 51594112, 64492640, 128985280, 257970560]

約数ペア:

[(1, 257970560), (2, 128985280), (4, 64492640), (5, 51594112), (8, 32246320), (10, 25797056), (16, 16123160), (20, 12898528), (32, 8061580), (40, 6449264), (64, 4030790), (80, 3224632), (128, 2015395), (160, 1612316), (320, 806158), (640, 403079)]