278575160

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{240151}}^1$

素因数の和:240191

約数の個数: 32

約数和(自身を含む): 648410400

約数和(自身を除く): 369835240

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 240151, 480302, 960604, 1200755, 1921208, 2401510, 4803020, 6964379, 9606040, 13928758, 27857516, 34821895, 55715032, 69643790, 139287580, 278575160]

約数ペア:

[(1, 278575160), (2, 139287580), (4, 69643790), (5, 55715032), (8, 34821895), (10, 27857516), (20, 13928758), (29, 9606040), (40, 6964379), (58, 4803020), (116, 2401510), (145, 1921208), (232, 1200755), (290, 960604), (580, 480302), (1160, 240151)]