20376356

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{727}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 48799296

約数和(自身を除く): 28422940

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 727, 1001, 1078, 1274, 1454, 2002, 2156, 2548, 2908, 4004, 5089, 7007, 7997, 9451, 10178, 14014, 15994, 18902, 20356, 28028, 31988, 35623, 37804, 55979, 66157, 71246, 103961, 111958, 132314, 142492, 207922, 223916, 264628, 391853, 415844, 463099, 727727, 783706, 926198, 1455454, 1567412, 1852396, 2910908, 5094089, 10188178, 20376356]

約数ペア:

[(1, 20376356), (2, 10188178), (4, 5094089), (7, 2910908), (11, 1852396), (13, 1567412), (14, 1455454), (22, 926198), (26, 783706), (28, 727727), (44, 463099), (49, 415844), (52, 391853), (77, 264628), (91, 223916), (98, 207922), (143, 142492), (154, 132314), (182, 111958), (196, 103961), (286, 71246), (308, 66157), (364, 55979), (539, 37804), (572, 35623), (637, 31988), (727, 28028), (1001, 20356), (1078, 18902), (1274, 15994), (1454, 14014), (2002, 10178), (2156, 9451), (2548, 7997), (2908, 7007), (4004, 5089)]