12817720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2339}}^1$

素因数の和:2487

約数の個数: 32

約数和(自身を含む): 29062800

約数和(自身を除く): 16245080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2339, 2740, 4678, 5480, 9356, 11695, 18712, 23390, 46780, 93560, 320443, 640886, 1281772, 1602215, 2563544, 3204430, 6408860, 12817720]

約数ペア:

[(1, 12817720), (2, 6408860), (4, 3204430), (5, 2563544), (8, 1602215), (10, 1281772), (20, 640886), (40, 320443), (137, 93560), (274, 46780), (548, 23390), (685, 18712), (1096, 11695), (1370, 9356), (2339, 5480), (2740, 4678)]