81536728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2383}}^1$

素因数の和:2456

約数の個数: 64

約数和(自身を含む): 192245760

約数和(自身を除く): 110709032

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 47, 52, 56, 91, 94, 104, 182, 188, 329, 364, 376, 611, 658, 728, 1222, 1316, 2383, 2444, 2632, 4277, 4766, 4888, 8554, 9532, 16681, 17108, 19064, 30979, 33362, 34216, 61958, 66724, 112001, 123916, 133448, 216853, 224002, 247832, 433706, 448004, 784007, 867412, 896008, 1456013, 1568014, 1734824, 2912026, 3136028, 5824052, 6272056, 10192091, 11648104, 20384182, 40768364, 81536728]

約数ペア:

[(1, 81536728), (2, 40768364), (4, 20384182), (7, 11648104), (8, 10192091), (13, 6272056), (14, 5824052), (26, 3136028), (28, 2912026), (47, 1734824), (52, 1568014), (56, 1456013), (91, 896008), (94, 867412), (104, 784007), (182, 448004), (188, 433706), (329, 247832), (364, 224002), (376, 216853), (611, 133448), (658, 123916), (728, 112001), (1222, 66724), (1316, 61958), (2383, 34216), (2444, 33362), (2632, 30979), (4277, 19064), (4766, 17108), (4888, 16681), (8554, 9532)]