38478640

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2417}}^1$

素因数の和:2629

約数の個数: 40

約数和(自身を含む): 89949600

約数和(自身を除く): 51470960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 2417, 3184, 3980, 4834, 7960, 9668, 12085, 15920, 19336, 24170, 38672, 48340, 96680, 193360, 480983, 961966, 1923932, 2404915, 3847864, 4809830, 7695728, 9619660, 19239320, 38478640]

約数ペア:

[(1, 38478640), (2, 19239320), (4, 9619660), (5, 7695728), (8, 4809830), (10, 3847864), (16, 2404915), (20, 1923932), (40, 961966), (80, 480983), (199, 193360), (398, 96680), (796, 48340), (995, 38672), (1592, 24170), (1990, 19336), (2417, 15920), (3184, 12085), (3980, 9668), (4834, 7960)]