28210240

素因数分解:

$2^6\times 5^1\times {\mathrm{199}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 56

約数和(自身を含む): 67665600

約数和(自身を除く): 39455360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 199, 320, 398, 443, 796, 886, 995, 1592, 1772, 1990, 2215, 3184, 3544, 3980, 4430, 6368, 7088, 7960, 8860, 12736, 14176, 15920, 17720, 28352, 31840, 35440, 63680, 70880, 88157, 141760, 176314, 352628, 440785, 705256, 881570, 1410512, 1763140, 2821024, 3526280, 5642048, 7052560, 14105120, 28210240]

約数ペア:

[(1, 28210240), (2, 14105120), (4, 7052560), (5, 5642048), (8, 3526280), (10, 2821024), (16, 1763140), (20, 1410512), (32, 881570), (40, 705256), (64, 440785), (80, 352628), (160, 176314), (199, 141760), (320, 88157), (398, 70880), (443, 63680), (796, 35440), (886, 31840), (995, 28352), (1592, 17720), (1772, 15920), (1990, 14176), (2215, 12736), (3184, 8860), (3544, 7960), (3980, 7088), (4430, 6368)]