128824420

素因数分解:

$2^2\times 5^1\times {\mathrm{1709}}^1\times {\mathrm{3769}}^1$

素因数の和:5487

約数の個数: 24

約数和(自身を含む): 270761400

約数和(自身を除く): 141936980

約数列:

[1, 2, 4, 5, 10, 20, 1709, 3418, 3769, 6836, 7538, 8545, 15076, 17090, 18845, 34180, 37690, 75380, 6441221, 12882442, 25764884, 32206105, 64412210, 128824420]

約数ペア:

[(1, 128824420), (2, 64412210), (4, 32206105), (5, 25764884), (10, 12882442), (20, 6441221), (1709, 75380), (3418, 37690), (3769, 34180), (6836, 18845), (7538, 17090), (8545, 15076)]