1640802978

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^1\times {\mathrm{401}}^1\times {\mathrm{2207}}^1$

素因数の和:2719

約数の個数: 48

約数和(自身を含む): 3600170496

約数和(自身を除く): 1959367518

約数列:

[1, 2, 3, 6, 9, 18, 103, 206, 309, 401, 618, 802, 927, 1203, 1854, 2207, 2406, 3609, 4414, 6621, 7218, 13242, 19863, 39726, 41303, 82606, 123909, 227321, 247818, 371727, 454642, 681963, 743454, 885007, 1363926, 1770014, 2045889, 2655021, 4091778, 5310042, 7965063, 15930126, 91155721, 182311442, 273467163, 546934326, 820401489, 1640802978]

約数ペア:

[(1, 1640802978), (2, 820401489), (3, 546934326), (6, 273467163), (9, 182311442), (18, 91155721), (103, 15930126), (206, 7965063), (309, 5310042), (401, 4091778), (618, 2655021), (802, 2045889), (927, 1770014), (1203, 1363926), (1854, 885007), (2207, 743454), (2406, 681963), (3609, 454642), (4414, 371727), (6621, 247818), (7218, 227321), (13242, 123909), (19863, 82606), (39726, 41303)]