87720290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{179021}}^1$

素因数の和:179042

約数の個数: 24

約数和(自身を含む): 183676572

約数和(自身を除く): 95956282

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 179021, 358042, 895105, 1253147, 1790210, 2506294, 6265735, 8772029, 12531470, 17544058, 43860145, 87720290]

約数ペア:

[(1, 87720290), (2, 43860145), (5, 17544058), (7, 12531470), (10, 8772029), (14, 6265735), (35, 2506294), (49, 1790210), (70, 1253147), (98, 895105), (245, 358042), (490, 179021)]