28897425

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1381}}^1$

素因数の和:1431

約数の個数: 48

約数和(自身を含む): 54837760

約数和(自身を除く): 25940335

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 1381, 1395, 2325, 4143, 4185, 6905, 6975, 12429, 20715, 20925, 34525, 37287, 42811, 62145, 103575, 128433, 186435, 214055, 310725, 385299, 642165, 932175, 1070275, 1155897, 1926495, 3210825, 5779485, 9632475, 28897425]

約数ペア:

[(1, 28897425), (3, 9632475), (5, 5779485), (9, 3210825), (15, 1926495), (25, 1155897), (27, 1070275), (31, 932175), (45, 642165), (75, 385299), (93, 310725), (135, 214055), (155, 186435), (225, 128433), (279, 103575), (465, 62145), (675, 42811), (775, 37287), (837, 34525), (1381, 20925), (1395, 20715), (2325, 12429), (4143, 6975), (4185, 6905)]