28526575

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 47072880

約数和(自身を除く): 18546305

約数列:

[1, 5, 7, 11, 25, 29, 35, 49, 55, 73, 77, 145, 175, 203, 245, 275, 319, 365, 385, 511, 539, 725, 803, 1015, 1225, 1421, 1595, 1825, 1925, 2117, 2233, 2555, 2695, 3577, 4015, 5075, 5621, 7105, 7975, 10585, 11165, 12775, 13475, 14819, 15631, 17885, 20075, 23287, 28105, 35525, 39347, 52925, 55825, 74095, 78155, 89425, 103733, 116435, 140525, 163009, 196735, 370475, 390775, 518665, 582175, 815045, 983675, 1141063, 2593325, 4075225, 5705315, 28526575]

約数ペア:

[(1, 28526575), (5, 5705315), (7, 4075225), (11, 2593325), (25, 1141063), (29, 983675), (35, 815045), (49, 582175), (55, 518665), (73, 390775), (77, 370475), (145, 196735), (175, 163009), (203, 140525), (245, 116435), (275, 103733), (319, 89425), (365, 78155), (385, 74095), (511, 55825), (539, 52925), (725, 39347), (803, 35525), (1015, 28105), (1225, 23287), (1421, 20075), (1595, 17885), (1825, 15631), (1925, 14819), (2117, 13475), (2233, 12775), (2555, 11165), (2695, 10585), (3577, 7975), (4015, 7105), (5075, 5621)]