87777740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{4567}}^1$

素因数の和:4638

約数の個数: 36

約数和(自身を含む): 190513008

約数和(自身を除く): 102735268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4567, 4805, 9134, 9610, 18268, 19220, 22835, 45670, 91340, 141577, 283154, 566308, 707885, 1415770, 2831540, 4388887, 8777774, 17555548, 21944435, 43888870, 87777740]

約数ペア:

[(1, 87777740), (2, 43888870), (4, 21944435), (5, 17555548), (10, 8777774), (20, 4388887), (31, 2831540), (62, 1415770), (124, 707885), (155, 566308), (310, 283154), (620, 141577), (961, 91340), (1922, 45670), (3844, 22835), (4567, 19220), (4805, 18268), (9134, 9610)]