81916156

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{409}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 171924480

約数和(自身を除く): 90008324

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 311, 322, 409, 622, 644, 818, 1244, 1636, 2177, 2863, 4354, 5726, 7153, 8708, 9407, 11452, 14306, 18814, 28612, 37628, 50071, 65849, 100142, 127199, 131698, 200284, 254398, 263396, 508796, 890393, 1780786, 2925577, 3561572, 5851154, 11702308, 20479039, 40958078, 81916156]

約数ペア:

[(1, 81916156), (2, 40958078), (4, 20479039), (7, 11702308), (14, 5851154), (23, 3561572), (28, 2925577), (46, 1780786), (92, 890393), (161, 508796), (311, 263396), (322, 254398), (409, 200284), (622, 131698), (644, 127199), (818, 100142), (1244, 65849), (1636, 50071), (2177, 37628), (2863, 28612), (4354, 18814), (5726, 14306), (7153, 11452), (8708, 9407)]