128974460

素因数分解:

$2^2\times 5^1\times {\mathrm{1913}}^1\times {\mathrm{3371}}^1$

素因数の和:5293

約数の個数: 24

約数和(自身を含む): 271068336

約数和(自身を除く): 142093876

約数列:

[1, 2, 4, 5, 10, 20, 1913, 3371, 3826, 6742, 7652, 9565, 13484, 16855, 19130, 33710, 38260, 67420, 6448723, 12897446, 25794892, 32243615, 64487230, 128974460]

約数ペア:

[(1, 128974460), (2, 64487230), (4, 32243615), (5, 25794892), (10, 12897446), (20, 6448723), (1913, 67420), (3371, 38260), (3826, 33710), (6742, 19130), (7652, 16855), (9565, 13484)]