820227512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{254413}}^1$

素因数の和:254463

約数の個数: 32

約数和(自身を含む): 1709662080

約数和(自身を除く): 889434568

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 254413, 508826, 1017652, 2035304, 3307369, 6614738, 7886803, 13229476, 15773606, 26458952, 31547212, 63094424, 102528439, 205056878, 410113756, 820227512]

約数ペア:

[(1, 820227512), (2, 410113756), (4, 205056878), (8, 102528439), (13, 63094424), (26, 31547212), (31, 26458952), (52, 15773606), (62, 13229476), (104, 7886803), (124, 6614738), (248, 3307369), (403, 2035304), (806, 1017652), (1612, 508826), (3224, 254413)]