1872990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{991}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 5713920

約数和(自身を除く): 3840930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 991, 1890, 1982, 2973, 4955, 5946, 6937, 8919, 9910, 13874, 14865, 17838, 20811, 26757, 29730, 34685, 41622, 44595, 53514, 62433, 69370, 89190, 104055, 124866, 133785, 187299, 208110, 267570, 312165, 374598, 624330, 936495, 1872990]

約数ペア:

[(1, 1872990), (2, 936495), (3, 624330), (5, 374598), (6, 312165), (7, 267570), (9, 208110), (10, 187299), (14, 133785), (15, 124866), (18, 104055), (21, 89190), (27, 69370), (30, 62433), (35, 53514), (42, 44595), (45, 41622), (54, 34685), (63, 29730), (70, 26757), (90, 20811), (105, 17838), (126, 14865), (135, 13874), (189, 9910), (210, 8919), (270, 6937), (315, 5946), (378, 4955), (630, 2973), (945, 1982), (991, 1890)]