665084920

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 1514557440

約数和(自身を除く): 849472520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 263, 331, 382, 526, 662, 764, 955, 1052, 1315, 1324, 1528, 1655, 1910, 2104, 2630, 2648, 3310, 3820, 5260, 6620, 7640, 10520, 13240, 50233, 63221, 87053, 100466, 126442, 174106, 200932, 251165, 252884, 316105, 348212, 401864, 435265, 502330, 505768, 632210, 696424, 870530, 1004660, 1264420, 1741060, 2009320, 2528840, 3482120, 16627123, 33254246, 66508492, 83135615, 133016984, 166271230, 332542460, 665084920]

約数ペア:

[(1, 665084920), (2, 332542460), (4, 166271230), (5, 133016984), (8, 83135615), (10, 66508492), (20, 33254246), (40, 16627123), (191, 3482120), (263, 2528840), (331, 2009320), (382, 1741060), (526, 1264420), (662, 1004660), (764, 870530), (955, 696424), (1052, 632210), (1315, 505768), (1324, 502330), (1528, 435265), (1655, 401864), (1910, 348212), (2104, 316105), (2630, 252884), (2648, 251165), (3310, 200932), (3820, 174106), (5260, 126442), (6620, 100466), (7640, 87053), (10520, 63221), (13240, 50233)]