20188168

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2521}}^1$

素因数の和:2558

約数の個数: 64

約数和(自身を含む): 50843520

約数和(自身を除く): 30655352

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2521, 4004, 5042, 8008, 10084, 17647, 20168, 27731, 32773, 35294, 55462, 65546, 70588, 110924, 131092, 141176, 194117, 221848, 229411, 262184, 360503, 388234, 458822, 721006, 776468, 917644, 1442012, 1552936, 1835288, 2523521, 2884024, 5047042, 10094084, 20188168]

約数ペア:

[(1, 20188168), (2, 10094084), (4, 5047042), (7, 2884024), (8, 2523521), (11, 1835288), (13, 1552936), (14, 1442012), (22, 917644), (26, 776468), (28, 721006), (44, 458822), (52, 388234), (56, 360503), (77, 262184), (88, 229411), (91, 221848), (104, 194117), (143, 141176), (154, 131092), (182, 110924), (286, 70588), (308, 65546), (364, 55462), (572, 35294), (616, 32773), (728, 27731), (1001, 20168), (1144, 17647), (2002, 10084), (2521, 8008), (4004, 5042)]