20301345

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 36812880

約数和(自身を除く): 16511535

約数列:

[1, 3, 5, 9, 15, 37, 45, 89, 111, 137, 185, 267, 333, 411, 445, 555, 685, 801, 1233, 1335, 1665, 2055, 3293, 4005, 5069, 6165, 9879, 12193, 15207, 16465, 25345, 29637, 36579, 45621, 49395, 60965, 76035, 109737, 148185, 182895, 228105, 451141, 548685, 1353423, 2255705, 4060269, 6767115, 20301345]

約数ペア:

[(1, 20301345), (3, 6767115), (5, 4060269), (9, 2255705), (15, 1353423), (37, 548685), (45, 451141), (89, 228105), (111, 182895), (137, 148185), (185, 109737), (267, 76035), (333, 60965), (411, 49395), (445, 45621), (555, 36579), (685, 29637), (801, 25345), (1233, 16465), (1335, 15207), (1665, 12193), (2055, 9879), (3293, 6165), (4005, 5069)]