18181088

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 37333296

約数和(自身を除く): 19152208

約数列:

[1, 2, 4, 8, 16, 32, 43, 73, 86, 146, 172, 181, 292, 344, 362, 584, 688, 724, 1168, 1376, 1448, 2336, 2896, 3139, 5792, 6278, 7783, 12556, 13213, 15566, 25112, 26426, 31132, 50224, 52852, 62264, 100448, 105704, 124528, 211408, 249056, 422816, 568159, 1136318, 2272636, 4545272, 9090544, 18181088]

約数ペア:

[(1, 18181088), (2, 9090544), (4, 4545272), (8, 2272636), (16, 1136318), (32, 568159), (43, 422816), (73, 249056), (86, 211408), (146, 124528), (172, 105704), (181, 100448), (292, 62264), (344, 52852), (362, 50224), (584, 31132), (688, 26426), (724, 25112), (1168, 15566), (1376, 13213), (1448, 12556), (2336, 7783), (2896, 6278), (3139, 5792)]