19135840

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:815

約数の個数: 48

約数和(自身を含む): 45511200

約数和(自身を除く): 26375360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 601, 796, 995, 1202, 1592, 1990, 2404, 3005, 3184, 3980, 4808, 6010, 6368, 7960, 9616, 12020, 15920, 19232, 24040, 31840, 48080, 96160, 119599, 239198, 478396, 597995, 956792, 1195990, 1913584, 2391980, 3827168, 4783960, 9567920, 19135840]

約数ペア:

[(1, 19135840), (2, 9567920), (4, 4783960), (5, 3827168), (8, 2391980), (10, 1913584), (16, 1195990), (20, 956792), (32, 597995), (40, 478396), (80, 239198), (160, 119599), (199, 96160), (398, 48080), (601, 31840), (796, 24040), (995, 19232), (1202, 15920), (1592, 12020), (1990, 9616), (2404, 7960), (3005, 6368), (3184, 6010), (3980, 4808)]