135276280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{78649}}^1$

素因数の和:78703

約数の個数: 32

約数和(自身を含む): 311454000

約数和(自身を除く): 176177720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 78649, 157298, 314596, 393245, 629192, 786490, 1572980, 3145960, 3381907, 6763814, 13527628, 16909535, 27055256, 33819070, 67638140, 135276280]

約数ペア:

[(1, 135276280), (2, 67638140), (4, 33819070), (5, 27055256), (8, 16909535), (10, 13527628), (20, 6763814), (40, 3381907), (43, 3145960), (86, 1572980), (172, 786490), (215, 629192), (344, 393245), (430, 314596), (860, 157298), (1720, 78649)]