7877883985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{4003}}^1$

素因数の和:4297

約数の個数: 32

約数和(自身を含む): 10020890880

約数和(自身を除く): 2143006895

約数列:

[1, 5, 23, 109, 115, 157, 545, 785, 2507, 3611, 4003, 12535, 17113, 18055, 20015, 85565, 92069, 393599, 436327, 460345, 628471, 1967995, 2181635, 3142355, 10035521, 14454833, 50177605, 68503339, 72274165, 342516695, 1575576797, 7877883985]

約数ペア:

[(1, 7877883985), (5, 1575576797), (23, 342516695), (109, 72274165), (115, 68503339), (157, 50177605), (545, 14454833), (785, 10035521), (2507, 3142355), (3611, 2181635), (4003, 1967995), (12535, 628471), (17113, 460345), (18055, 436327), (20015, 393599), (85565, 92069)]