18056990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 38733552

約数和(自身を除く): 20676562

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 857, 1505, 1714, 2107, 3010, 4214, 4285, 5999, 8570, 10535, 11998, 21070, 29995, 36851, 41993, 59990, 73702, 83986, 184255, 209965, 257957, 368510, 419930, 515914, 1289785, 1805699, 2579570, 3611398, 9028495, 18056990]

約数ペア:

[(1, 18056990), (2, 9028495), (5, 3611398), (7, 2579570), (10, 1805699), (14, 1289785), (35, 515914), (43, 419930), (49, 368510), (70, 257957), (86, 209965), (98, 184255), (215, 83986), (245, 73702), (301, 59990), (430, 41993), (490, 36851), (602, 29995), (857, 21070), (1505, 11998), (1714, 10535), (2107, 8570), (3010, 5999), (4214, 4285)]