39781940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{857}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 91675584

約数和(自身を除く): 51893644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 422, 844, 857, 1055, 1714, 2110, 2321, 3428, 4220, 4285, 4642, 8570, 9284, 9427, 11605, 17140, 18854, 23210, 37708, 46420, 47135, 94270, 180827, 188540, 361654, 723308, 904135, 1808270, 1989097, 3616540, 3978194, 7956388, 9945485, 19890970, 39781940]

約数ペア:

[(1, 39781940), (2, 19890970), (4, 9945485), (5, 7956388), (10, 3978194), (11, 3616540), (20, 1989097), (22, 1808270), (44, 904135), (55, 723308), (110, 361654), (211, 188540), (220, 180827), (422, 94270), (844, 47135), (857, 46420), (1055, 37708), (1714, 23210), (2110, 18854), (2321, 17140), (3428, 11605), (4220, 9427), (4285, 9284), (4642, 8570)]