18886880

素因数分解:

$2^5\times 5^1\times {\mathrm{118043}}^1$

素因数の和:118058

約数の個数: 24

約数和(自身を含む): 44620632

約数和(自身を除く): 25733752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 118043, 236086, 472172, 590215, 944344, 1180430, 1888688, 2360860, 3777376, 4721720, 9443440, 18886880]

約数ペア:

[(1, 18886880), (2, 9443440), (4, 4721720), (5, 3777376), (8, 2360860), (10, 1888688), (16, 1180430), (20, 944344), (32, 590215), (40, 472172), (80, 236086), (160, 118043)]