28897785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 28759815

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 199, 315, 461, 597, 995, 1383, 1393, 1791, 2305, 2985, 3227, 4149, 4179, 6915, 6965, 8955, 9681, 12537, 16135, 20745, 20895, 29043, 48405, 62685, 91739, 145215, 275217, 458695, 642173, 825651, 1376085, 1926519, 3210865, 4128255, 5779557, 9632595, 28897785]

約数ペア:

[(1, 28897785), (3, 9632595), (5, 5779557), (7, 4128255), (9, 3210865), (15, 1926519), (21, 1376085), (35, 825651), (45, 642173), (63, 458695), (105, 275217), (199, 145215), (315, 91739), (461, 62685), (597, 48405), (995, 29043), (1383, 20895), (1393, 20745), (1791, 16135), (2305, 12537), (2985, 9681), (3227, 8955), (4149, 6965), (4179, 6915)]