28009995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^2$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 48391056

約数和(自身を除く): 20381061

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 379, 1137, 1895, 4927, 5685, 14781, 24635, 73905, 143641, 430923, 718205, 1867333, 2154615, 5601999, 9336665, 28009995]

約数ペア:

[(1, 28009995), (3, 9336665), (5, 5601999), (13, 2154615), (15, 1867333), (39, 718205), (65, 430923), (195, 143641), (379, 73905), (1137, 24635), (1895, 14781), (4927, 5685)]