420131715

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{15887}}^1$

素因数の和:15979

約数の個数: 32

約数和(自身を含む): 704664576

約数和(自身を除く): 284532861

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 1763, 5289, 8815, 15887, 26445, 47661, 79435, 238305, 651367, 683141, 1954101, 2049423, 3256835, 3415705, 9770505, 10247115, 28008781, 84026343, 140043905, 420131715]

約数ペア:

[(1, 420131715), (3, 140043905), (5, 84026343), (15, 28008781), (41, 10247115), (43, 9770505), (123, 3415705), (129, 3256835), (205, 2049423), (215, 1954101), (615, 683141), (645, 651367), (1763, 238305), (5289, 79435), (8815, 47661), (15887, 26445)]