28402155

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 52700544

約数和(自身を除く): 24298389

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 137, 153, 255, 271, 411, 685, 765, 813, 1233, 1355, 2055, 2329, 2439, 4065, 4607, 6165, 6987, 11645, 12195, 13821, 20961, 23035, 34935, 37127, 41463, 69105, 104805, 111381, 185635, 207315, 334143, 556905, 631159, 1670715, 1893477, 3155795, 5680431, 9467385, 28402155]

約数ペア:

[(1, 28402155), (3, 9467385), (5, 5680431), (9, 3155795), (15, 1893477), (17, 1670715), (45, 631159), (51, 556905), (85, 334143), (137, 207315), (153, 185635), (255, 111381), (271, 104805), (411, 69105), (685, 41463), (765, 37127), (813, 34935), (1233, 23035), (1355, 20961), (2055, 13821), (2329, 12195), (2439, 11645), (4065, 6987), (4607, 6165)]