400702913

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 468437760

約数和(自身を除く): 67734847

約数列:

[1, 13, 19, 71, 73, 247, 313, 923, 949, 1349, 1387, 4069, 5183, 5947, 17537, 18031, 22223, 22849, 67379, 77311, 98477, 288899, 297037, 422237, 434131, 1280201, 1622279, 5489081, 5643703, 21089627, 30823301, 400702913]

約数ペア:

[(1, 400702913), (13, 30823301), (19, 21089627), (71, 5643703), (73, 5489081), (247, 1622279), (313, 1280201), (923, 434131), (949, 422237), (1349, 297037), (1387, 288899), (4069, 98477), (5183, 77311), (5947, 67379), (17537, 22849), (18031, 22223)]