28777725

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1619}}^1$

素因数の和:1714

約数の個数: 36

約数和(自身を含む): 52228800

約数和(自身を除く): 23451075

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 225, 237, 395, 711, 1185, 1619, 1975, 3555, 4857, 5925, 8095, 14571, 17775, 24285, 40475, 72855, 121425, 127901, 364275, 383703, 639505, 1151109, 1918515, 3197525, 5755545, 9592575, 28777725]

約数ペア:

[(1, 28777725), (3, 9592575), (5, 5755545), (9, 3197525), (15, 1918515), (25, 1151109), (45, 639505), (75, 383703), (79, 364275), (225, 127901), (237, 121425), (395, 72855), (711, 40475), (1185, 24285), (1619, 17775), (1975, 14571), (3555, 8095), (4857, 5925)]