215787670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{440383}}^1$

素因数の和:440404

約数の個数: 24

約数和(自身を含む): 451833984

約数和(自身を除く): 236046314

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 440383, 880766, 2201915, 3082681, 4403830, 6165362, 15413405, 21578767, 30826810, 43157534, 107893835, 215787670]

約数ペア:

[(1, 215787670), (2, 107893835), (5, 43157534), (7, 30826810), (10, 21578767), (14, 15413405), (35, 6165362), (49, 4403830), (70, 3082681), (98, 2201915), (245, 880766), (490, 440383)]