81800125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1451}}^1$

素因数の和:1518

約数の個数: 32

約数和(自身を含む): 114162048

約数和(自身を除く): 32361923

約数列:

[1, 5, 11, 25, 41, 55, 125, 205, 275, 451, 1025, 1375, 1451, 2255, 5125, 7255, 11275, 15961, 36275, 56375, 59491, 79805, 181375, 297455, 399025, 654401, 1487275, 1995125, 3272005, 7436375, 16360025, 81800125]

約数ペア:

[(1, 81800125), (5, 16360025), (11, 7436375), (25, 3272005), (41, 1995125), (55, 1487275), (125, 654401), (205, 399025), (275, 297455), (451, 181375), (1025, 79805), (1375, 59491), (1451, 56375), (2255, 36275), (5125, 15961), (7255, 11275)]