28558660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109841}}^1$

素因数の和:109863

約数の個数: 24

約数和(自身を含む): 64587096

約数和(自身を除く): 36028436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109841, 219682, 439364, 549205, 1098410, 1427933, 2196820, 2855866, 5711732, 7139665, 14279330, 28558660]

約数ペア:

[(1, 28558660), (2, 14279330), (4, 7139665), (5, 5711732), (10, 2855866), (13, 2196820), (20, 1427933), (26, 1098410), (52, 549205), (65, 439364), (130, 219682), (260, 109841)]