28085265

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1231}}^1$

素因数の和:1271

約数の個数: 48

約数和(自身を含む): 54109440

約数和(自身を除く): 26024175

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 169, 195, 351, 507, 585, 845, 1231, 1521, 1755, 2535, 3693, 4563, 6155, 7605, 11079, 16003, 18465, 22815, 33237, 48009, 55395, 80015, 144027, 166185, 208039, 240045, 432081, 624117, 720135, 1040195, 1872351, 2160405, 3120585, 5617053, 9361755, 28085265]

約数ペア:

[(1, 28085265), (3, 9361755), (5, 5617053), (9, 3120585), (13, 2160405), (15, 1872351), (27, 1040195), (39, 720135), (45, 624117), (65, 432081), (117, 240045), (135, 208039), (169, 166185), (195, 144027), (351, 80015), (507, 55395), (585, 48009), (845, 33237), (1231, 22815), (1521, 18465), (1755, 16003), (2535, 11079), (3693, 7605), (4563, 6155)]