30990195

素因数分解:

$3^4\times 5^1\times {\mathrm{76519}}^1$

素因数の和:76536

約数の個数: 20

約数和(自身を含む): 55553520

約数和(自身を除く): 24563325

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 76519, 229557, 382595, 688671, 1147785, 2066013, 3443355, 6198039, 10330065, 30990195]

約数ペア:

[(1, 30990195), (3, 10330065), (5, 6198039), (9, 3443355), (15, 2066013), (27, 1147785), (45, 688671), (81, 382595), (135, 229557), (405, 76519)]