391875856

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{2027}}^1$

素因数の和:2359

約数の個数: 40

約数和(自身を含む): 780066144

約数和(自身を除く): 388190288

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 281, 344, 562, 688, 1124, 2027, 2248, 4054, 4496, 8108, 12083, 16216, 24166, 32432, 48332, 87161, 96664, 174322, 193328, 348644, 569587, 697288, 1139174, 1394576, 2278348, 4556696, 9113392, 24492241, 48984482, 97968964, 195937928, 391875856]

約数ペア:

[(1, 391875856), (2, 195937928), (4, 97968964), (8, 48984482), (16, 24492241), (43, 9113392), (86, 4556696), (172, 2278348), (281, 1394576), (344, 1139174), (562, 697288), (688, 569587), (1124, 348644), (2027, 193328), (2248, 174322), (4054, 96664), (4496, 87161), (8108, 48332), (12083, 32432), (16216, 24166)]