389203420

素因数分解:

$2^2\times 5^1\times {\mathrm{2749}}^1\times {\mathrm{7079}}^1$

素因数の和:9837

約数の個数: 24

約数和(自身を含む): 817740000

約数和(自身を除く): 428536580

約数列:

[1, 2, 4, 5, 10, 20, 2749, 5498, 7079, 10996, 13745, 14158, 27490, 28316, 35395, 54980, 70790, 141580, 19460171, 38920342, 77840684, 97300855, 194601710, 389203420]

約数ペア:

[(1, 389203420), (2, 194601710), (4, 97300855), (5, 77840684), (10, 38920342), (20, 19460171), (2749, 141580), (5498, 70790), (7079, 54980), (10996, 35395), (13745, 28316), (14158, 27490)]