28207035

素因数分解:

$3^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 50947776

約数和(自身を除く): 22740741

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 257, 271, 405, 771, 813, 1285, 1355, 2313, 2439, 3855, 4065, 6939, 7317, 11565, 12195, 20817, 21951, 34695, 36585, 69647, 104085, 109755, 208941, 348235, 626823, 1044705, 1880469, 3134115, 5641407, 9402345, 28207035]

約数ペア:

[(1, 28207035), (3, 9402345), (5, 5641407), (9, 3134115), (15, 1880469), (27, 1044705), (45, 626823), (81, 348235), (135, 208941), (257, 109755), (271, 104085), (405, 69647), (771, 36585), (813, 34695), (1285, 21951), (1355, 20817), (2313, 12195), (2439, 11565), (3855, 7317), (4065, 6939)]