128220208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2141}}^1$

素因数の和:2365

約数の個数: 40

約数和(自身を含む): 262951920

約数和(自身を除く): 134731712

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 394, 788, 1576, 2141, 3152, 3743, 4282, 7486, 8564, 14972, 17128, 29944, 34256, 40679, 59888, 81358, 162716, 325432, 421777, 650864, 843554, 1687108, 3374216, 6748432, 8013763, 16027526, 32055052, 64110104, 128220208]

約数ペア:

[(1, 128220208), (2, 64110104), (4, 32055052), (8, 16027526), (16, 8013763), (19, 6748432), (38, 3374216), (76, 1687108), (152, 843554), (197, 650864), (304, 421777), (394, 325432), (788, 162716), (1576, 81358), (2141, 59888), (3152, 40679), (3743, 34256), (4282, 29944), (7486, 17128), (8564, 14972)]