1288894555

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{211}}^1\times {\mathrm{7229}}^1$

素因数の和:7471

約数の個数: 24

約数和(自身を含む): 1682970480

約数和(自身を除く): 394075925

約数列:

[1, 5, 13, 65, 169, 211, 845, 1055, 2743, 7229, 13715, 35659, 36145, 93977, 178295, 469885, 1221701, 1525319, 6108505, 7626595, 19829147, 99145735, 257778911, 1288894555]

約数ペア:

[(1, 1288894555), (5, 257778911), (13, 99145735), (65, 19829147), (169, 7626595), (211, 6108505), (845, 1525319), (1055, 1221701), (2743, 469885), (7229, 178295), (13715, 93977), (35659, 36145)]