20940372

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 55328000

約数和(自身を除く): 34387628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 79, 111, 148, 158, 199, 222, 237, 316, 333, 398, 444, 474, 597, 666, 711, 796, 948, 1194, 1332, 1422, 1791, 2388, 2844, 2923, 3582, 5846, 7164, 7363, 8769, 11692, 14726, 15721, 17538, 22089, 26307, 29452, 31442, 35076, 44178, 47163, 52614, 62884, 66267, 88356, 94326, 105228, 132534, 141489, 188652, 265068, 282978, 565956, 581677, 1163354, 1745031, 2326708, 3490062, 5235093, 6980124, 10470186, 20940372]

約数ペア:

[(1, 20940372), (2, 10470186), (3, 6980124), (4, 5235093), (6, 3490062), (9, 2326708), (12, 1745031), (18, 1163354), (36, 581677), (37, 565956), (74, 282978), (79, 265068), (111, 188652), (148, 141489), (158, 132534), (199, 105228), (222, 94326), (237, 88356), (316, 66267), (333, 62884), (398, 52614), (444, 47163), (474, 44178), (597, 35076), (666, 31442), (711, 29452), (796, 26307), (948, 22089), (1194, 17538), (1332, 15721), (1422, 14726), (1791, 11692), (2388, 8769), (2844, 7363), (2923, 7164), (3582, 5846)]