20744230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159571}}^1$

素因数の和:159591

約数の個数: 16

約数和(自身を含む): 40212144

約数和(自身を除く): 19467914

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 159571, 319142, 797855, 1595710, 2074423, 4148846, 10372115, 20744230]

約数ペア:

[(1, 20744230), (2, 10372115), (5, 4148846), (10, 2074423), (13, 1595710), (26, 797855), (65, 319142), (130, 159571)]