128880983

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1193}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 170560512

約数和(自身を除く): 41679529

約数列:

[1, 7, 11, 23, 61, 77, 161, 253, 427, 671, 1193, 1403, 1771, 4697, 8351, 9821, 13123, 15433, 27439, 72773, 91861, 108031, 192073, 301829, 509411, 800503, 1673779, 2112803, 5603521, 11716453, 18411569, 128880983]

約数ペア:

[(1, 128880983), (7, 18411569), (11, 11716453), (23, 5603521), (61, 2112803), (77, 1673779), (161, 800503), (253, 509411), (427, 301829), (671, 192073), (1193, 108031), (1403, 91861), (1771, 72773), (4697, 27439), (8351, 15433), (9821, 13123)]