27640240

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3229}}^1$

素因数の和:3349

約数の個数: 40

約数和(自身を含む): 64884240

約数和(自身を除く): 37244000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 3229, 4280, 6458, 8560, 12916, 16145, 25832, 32290, 51664, 64580, 129160, 258320, 345503, 691006, 1382012, 1727515, 2764024, 3455030, 5528048, 6910060, 13820120, 27640240]

約数ペア:

[(1, 27640240), (2, 13820120), (4, 6910060), (5, 5528048), (8, 3455030), (10, 2764024), (16, 1727515), (20, 1382012), (40, 691006), (80, 345503), (107, 258320), (214, 129160), (428, 64580), (535, 51664), (856, 32290), (1070, 25832), (1712, 16145), (2140, 12916), (3229, 8560), (4280, 6458)]