390784

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 32

約数和(自身を含む): 807840

約数和(自身を除く): 417056

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 71, 86, 128, 142, 172, 284, 344, 568, 688, 1136, 1376, 2272, 2752, 3053, 4544, 5504, 6106, 9088, 12212, 24424, 48848, 97696, 195392, 390784]

約数ペア:

[(1, 390784), (2, 195392), (4, 97696), (8, 48848), (16, 24424), (32, 12212), (43, 9088), (64, 6106), (71, 5504), (86, 4544), (128, 3053), (142, 2752), (172, 2272), (284, 1376), (344, 1136), (568, 688)]