8003996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 18816000

約数和(自身を除く): 10812004

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, 1999, 2002, 3998, 4004, 7996, 13993, 21989, 25987, 27986, 43978, 51974, 55972, 87956, 103948, 153923, 181909, 285857, 307846, 363818, 571714, 615692, 727636, 1143428, 2000999, 4001998, 8003996]

約数ペア:

[(1, 8003996), (2, 4001998), (4, 2000999), (7, 1143428), (11, 727636), (13, 615692), (14, 571714), (22, 363818), (26, 307846), (28, 285857), (44, 181909), (52, 153923), (77, 103948), (91, 87956), (143, 55972), (154, 51974), (182, 43978), (286, 27986), (308, 25987), (364, 21989), (572, 13993), (1001, 7996), (1999, 4004), (2002, 3998)]