66511640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{9839}}^1$

素因数の和:9876

約数の個数: 48

約数和(自身を含む): 162064800

約数和(自身を除く): 95553160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 9839, 19678, 39356, 49195, 78712, 98390, 127907, 196780, 255814, 393560, 511628, 639535, 1023256, 1279070, 1662791, 2558140, 3325582, 5116280, 6651164, 8313955, 13302328, 16627910, 33255820, 66511640]

約数ペア:

[(1, 66511640), (2, 33255820), (4, 16627910), (5, 13302328), (8, 8313955), (10, 6651164), (13, 5116280), (20, 3325582), (26, 2558140), (40, 1662791), (52, 1279070), (65, 1023256), (104, 639535), (130, 511628), (169, 393560), (260, 255814), (338, 196780), (520, 127907), (676, 98390), (845, 78712), (1352, 49195), (1690, 39356), (3380, 19678), (6760, 9839)]