2641720

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{313}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 5991120

約数和(自身を除く): 3349400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 313, 422, 626, 844, 1055, 1252, 1565, 1688, 2110, 2504, 3130, 4220, 6260, 8440, 12520, 66043, 132086, 264172, 330215, 528344, 660430, 1320860, 2641720]

約数ペア:

[(1, 2641720), (2, 1320860), (4, 660430), (5, 528344), (8, 330215), (10, 264172), (20, 132086), (40, 66043), (211, 12520), (313, 8440), (422, 6260), (626, 4220), (844, 3130), (1055, 2504), (1252, 2110), (1565, 1688)]