638409103612

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{1890731}}^1$

素因数の和:1891162

約数の個数: 48

約数和(自身を含む): 1321394780160

約数和(自身を除く): 682985676548

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 389, 434, 778, 868, 1556, 2723, 5446, 10892, 12059, 24118, 48236, 84413, 168826, 337652, 1890731, 3781462, 7562924, 13235117, 26470234, 52940468, 58612661, 117225322, 234450644, 410288627, 735494359, 820577254, 1470988718, 1641154508, 2941977436, 5148460513, 10296921026, 20593842052, 22800325129, 45600650258, 91201300516, 159602275903, 319204551806, 638409103612]

約数ペア:

[(1, 638409103612), (2, 319204551806), (4, 159602275903), (7, 91201300516), (14, 45600650258), (28, 22800325129), (31, 20593842052), (62, 10296921026), (124, 5148460513), (217, 2941977436), (389, 1641154508), (434, 1470988718), (778, 820577254), (868, 735494359), (1556, 410288627), (2723, 234450644), (5446, 117225322), (10892, 58612661), (12059, 52940468), (24118, 26470234), (48236, 13235117), (84413, 7562924), (168826, 3781462), (337652, 1890731)]