1638964

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 3024000

約数和(自身を除く): 1385036

約数列:

[1, 2, 4, 29, 58, 71, 116, 142, 199, 284, 398, 796, 2059, 4118, 5771, 8236, 11542, 14129, 23084, 28258, 56516, 409741, 819482, 1638964]

約数ペア:

[(1, 1638964), (2, 819482), (4, 409741), (29, 56516), (58, 28258), (71, 23084), (116, 14129), (142, 11542), (199, 8236), (284, 5771), (398, 4118), (796, 2059)]