28295295

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 53237088

約数和(自身を除く): 24941793

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 137, 147, 245, 281, 411, 685, 735, 843, 959, 1405, 1967, 2055, 2877, 4215, 4795, 5901, 6713, 9835, 13769, 14385, 20139, 29505, 33565, 38497, 41307, 68845, 100695, 115491, 192485, 206535, 269479, 577455, 808437, 1347395, 1886353, 4042185, 5659059, 9431765, 28295295]

約数ペア:

[(1, 28295295), (3, 9431765), (5, 5659059), (7, 4042185), (15, 1886353), (21, 1347395), (35, 808437), (49, 577455), (105, 269479), (137, 206535), (147, 192485), (245, 115491), (281, 100695), (411, 68845), (685, 41307), (735, 38497), (843, 33565), (959, 29505), (1405, 20139), (1967, 14385), (2055, 13769), (2877, 9835), (4215, 6713), (4795, 5901)]