20377184

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:363

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21535456

約数列:

[1, 2, 4, 8, 16, 32, 43, 59, 86, 118, 172, 236, 251, 344, 472, 502, 688, 944, 1004, 1376, 1888, 2008, 2537, 4016, 5074, 8032, 10148, 10793, 14809, 20296, 21586, 29618, 40592, 43172, 59236, 81184, 86344, 118472, 172688, 236944, 345376, 473888, 636787, 1273574, 2547148, 5094296, 10188592, 20377184]

約数ペア:

[(1, 20377184), (2, 10188592), (4, 5094296), (8, 2547148), (16, 1273574), (32, 636787), (43, 473888), (59, 345376), (86, 236944), (118, 172688), (172, 118472), (236, 86344), (251, 81184), (344, 59236), (472, 43172), (502, 40592), (688, 29618), (944, 21586), (1004, 20296), (1376, 14809), (1888, 10793), (2008, 10148), (2537, 8032), (4016, 5074)]