28493140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109589}}^1$

素因数の和:109611

約数の個数: 24

約数和(自身を含む): 64438920

約数和(自身を除く): 35945780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109589, 219178, 438356, 547945, 1095890, 1424657, 2191780, 2849314, 5698628, 7123285, 14246570, 28493140]

約数ペア:

[(1, 28493140), (2, 14246570), (4, 7123285), (5, 5698628), (10, 2849314), (13, 2191780), (20, 1424657), (26, 1095890), (52, 547945), (65, 438356), (130, 219178), (260, 109589)]