30720705

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47629}}^1$

素因数の和:47680

約数の個数: 16

約数和(自身を含む): 50297280

約数和(自身を除く): 19576575

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 47629, 142887, 238145, 714435, 2048047, 6144141, 10240235, 30720705]

約数ペア:

[(1, 30720705), (3, 10240235), (5, 6144141), (15, 2048047), (43, 714435), (129, 238145), (215, 142887), (645, 47629)]