261393444

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{558533}}^1$

素因数の和:558556

約数の個数: 36

約数和(自身を含む): 711572316

約数和(自身を除く): 450178872

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 558533, 1117066, 1675599, 2234132, 3351198, 5026797, 6702396, 7260929, 10053594, 14521858, 20107188, 21782787, 29043716, 43565574, 65348361, 87131148, 130696722, 261393444]

約数ペア:

[(1, 261393444), (2, 130696722), (3, 87131148), (4, 65348361), (6, 43565574), (9, 29043716), (12, 21782787), (13, 20107188), (18, 14521858), (26, 10053594), (36, 7260929), (39, 6702396), (52, 5026797), (78, 3351198), (117, 2234132), (156, 1675599), (234, 1117066), (468, 558533)]