66451940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 143325504

約数和(自身を除く): 76873564

約数列:

[1, 2, 4, 5, 10, 20, 67, 101, 134, 202, 268, 335, 404, 491, 505, 670, 982, 1010, 1340, 1964, 2020, 2455, 4910, 6767, 9820, 13534, 27068, 32897, 33835, 49591, 65794, 67670, 99182, 131588, 135340, 164485, 198364, 247955, 328970, 495910, 657940, 991820, 3322597, 6645194, 13290388, 16612985, 33225970, 66451940]

約数ペア:

[(1, 66451940), (2, 33225970), (4, 16612985), (5, 13290388), (10, 6645194), (20, 3322597), (67, 991820), (101, 657940), (134, 495910), (202, 328970), (268, 247955), (335, 198364), (404, 164485), (491, 135340), (505, 131588), (670, 99182), (982, 67670), (1010, 65794), (1340, 49591), (1964, 33835), (2020, 32897), (2455, 27068), (4910, 13534), (6767, 9820)]