1287975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1321}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 2294992

約数和(自身を除く): 1007017

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 1321, 3963, 6605, 17173, 19815, 33025, 51519, 85865, 99075, 257595, 429325, 1287975]

約数ペア:

[(1, 1287975), (3, 429325), (5, 257595), (13, 99075), (15, 85865), (25, 51519), (39, 33025), (65, 19815), (75, 17173), (195, 6605), (325, 3963), (975, 1321)]