28434380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109363}}^1$

素因数の和:109385

約数の個数: 24

約数和(自身を含む): 64306032

約数和(自身を除く): 35871652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109363, 218726, 437452, 546815, 1093630, 1421719, 2187260, 2843438, 5686876, 7108595, 14217190, 28434380]

約数ペア:

[(1, 28434380), (2, 14217190), (4, 7108595), (5, 5686876), (10, 2843438), (13, 2187260), (20, 1421719), (26, 1093630), (52, 546815), (65, 437452), (130, 218726), (260, 109363)]