19445740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 43636320

約数和(自身を除く): 24190580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 701, 730, 1387, 1402, 1460, 2774, 2804, 3505, 5548, 6935, 7010, 13319, 13870, 14020, 26638, 27740, 51173, 53276, 66595, 102346, 133190, 204692, 255865, 266380, 511730, 972287, 1023460, 1944574, 3889148, 4861435, 9722870, 19445740]

約数ペア:

[(1, 19445740), (2, 9722870), (4, 4861435), (5, 3889148), (10, 1944574), (19, 1023460), (20, 972287), (38, 511730), (73, 266380), (76, 255865), (95, 204692), (146, 133190), (190, 102346), (292, 66595), (365, 53276), (380, 51173), (701, 27740), (730, 26638), (1387, 14020), (1402, 13870), (1460, 13319), (2774, 7010), (2804, 6935), (3505, 5548)]