81178792

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{28109}}^1$

素因数の和:28153

約数の個数: 24

約数和(自身を含む): 160648650

約数和(自身を除く): 79469858

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 28109, 56218, 112436, 224872, 534071, 1068142, 2136284, 4272568, 10147349, 20294698, 40589396, 81178792]

約数ペア:

[(1, 81178792), (2, 40589396), (4, 20294698), (8, 10147349), (19, 4272568), (38, 2136284), (76, 1068142), (152, 534071), (361, 224872), (722, 112436), (1444, 56218), (2888, 28109)]