208889395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{631}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 295593984

約数和(自身を除く): 86704589

約数列:

[1, 5, 11, 13, 55, 65, 143, 463, 631, 715, 2315, 3155, 5093, 6019, 6941, 8203, 25465, 30095, 34705, 41015, 66209, 90233, 292153, 331045, 451165, 1460765, 3213683, 3797989, 16068415, 18989945, 41777879, 208889395]

約数ペア:

[(1, 208889395), (5, 41777879), (11, 18989945), (13, 16068415), (55, 3797989), (65, 3213683), (143, 1460765), (463, 451165), (631, 331045), (715, 292153), (2315, 90233), (3155, 66209), (5093, 41015), (6019, 34705), (6941, 30095), (8203, 25465)]