268721840

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{26449}}^1$

素因数の和:26589

約数の個数: 40

約数和(自身を含む): 629721600

約数和(自身を除く): 360999760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 26449, 52898, 105796, 132245, 211592, 264490, 423184, 528980, 1057960, 2115920, 3359023, 6718046, 13436092, 16795115, 26872184, 33590230, 53744368, 67180460, 134360920, 268721840]

約数ペア:

[(1, 268721840), (2, 134360920), (4, 67180460), (5, 53744368), (8, 33590230), (10, 26872184), (16, 16795115), (20, 13436092), (40, 6718046), (80, 3359023), (127, 2115920), (254, 1057960), (508, 528980), (635, 423184), (1016, 264490), (1270, 211592), (2032, 132245), (2540, 105796), (5080, 52898), (10160, 26449)]