428668810

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1\times {\mathrm{643}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 779446080

約数和(自身を除く): 350777270

約数列:

[1, 2, 5, 10, 163, 326, 409, 643, 815, 818, 1286, 1630, 2045, 3215, 4090, 6430, 66667, 104809, 133334, 209618, 262987, 333335, 524045, 525974, 666670, 1048090, 1314935, 2629870, 42866881, 85733762, 214334405, 428668810]

約数ペア:

[(1, 428668810), (2, 214334405), (5, 85733762), (10, 42866881), (163, 2629870), (326, 1314935), (409, 1048090), (643, 666670), (815, 525974), (818, 524045), (1286, 333335), (1630, 262987), (2045, 209618), (3215, 133334), (4090, 104809), (6430, 66667)]