81955216

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15569}}^1$

素因数の和:15631

約数の個数: 40

約数和(自身を含む): 185345280

約数和(自身を除く): 103390064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 5264, 15569, 31138, 62276, 108983, 124552, 217966, 249104, 435932, 731743, 871864, 1463486, 1743728, 2926972, 5122201, 5853944, 10244402, 11707888, 20488804, 40977608, 81955216]

約数ペア:

[(1, 81955216), (2, 40977608), (4, 20488804), (7, 11707888), (8, 10244402), (14, 5853944), (16, 5122201), (28, 2926972), (47, 1743728), (56, 1463486), (94, 871864), (112, 731743), (188, 435932), (329, 249104), (376, 217966), (658, 124552), (752, 108983), (1316, 62276), (2632, 31138), (5264, 15569)]