7995988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2032

約数の個数: 48

約数和(自身を含む): 18797184

約数和(自身を除く): 10801196

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 1997, 2002, 3994, 4004, 7988, 13979, 21967, 25961, 27958, 43934, 51922, 55916, 87868, 103844, 153769, 181727, 285571, 307538, 363454, 571142, 615076, 726908, 1142284, 1998997, 3997994, 7995988]

約数ペア:

[(1, 7995988), (2, 3997994), (4, 1998997), (7, 1142284), (11, 726908), (13, 615076), (14, 571142), (22, 363454), (26, 307538), (28, 285571), (44, 181727), (52, 153769), (77, 103844), (91, 87868), (143, 55916), (154, 51922), (182, 43934), (286, 27958), (308, 25961), (364, 21967), (572, 13979), (1001, 7988), (1997, 4004), (2002, 3994)]