128569660

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{18211}}^1$

素因数の和:18573

約数の個数: 24

約数和(自身を含む): 270776016

約数和(自身を除く): 142206356

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 7060, 18211, 36422, 72844, 91055, 182110, 364220, 6428483, 12856966, 25713932, 32142415, 64284830, 128569660]

約数ペア:

[(1, 128569660), (2, 64284830), (4, 32142415), (5, 25713932), (10, 12856966), (20, 6428483), (353, 364220), (706, 182110), (1412, 91055), (1765, 72844), (3530, 36422), (7060, 18211)]