28129575

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{709}}^1$

素因数の和:768

約数の個数: 36

約数和(自身を含む): 48686120

約数和(自身を除く): 20556545

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 529, 575, 709, 1587, 1725, 2127, 2645, 3545, 7935, 10635, 13225, 16307, 17725, 39675, 48921, 53175, 81535, 244605, 375061, 407675, 1125183, 1223025, 1875305, 5625915, 9376525, 28129575]

約数ペア:

[(1, 28129575), (3, 9376525), (5, 5625915), (15, 1875305), (23, 1223025), (25, 1125183), (69, 407675), (75, 375061), (115, 244605), (345, 81535), (529, 53175), (575, 48921), (709, 39675), (1587, 17725), (1725, 16307), (2127, 13225), (2645, 10635), (3545, 7935)]