85128220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{293}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 182750400

約数和(自身を除く): 97622180

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 199, 292, 293, 365, 398, 586, 730, 796, 995, 1172, 1460, 1465, 1990, 2930, 3980, 5860, 14527, 21389, 29054, 42778, 58108, 58307, 72635, 85556, 106945, 116614, 145270, 213890, 233228, 290540, 291535, 427780, 583070, 1166140, 4256411, 8512822, 17025644, 21282055, 42564110, 85128220]

約数ペア:

[(1, 85128220), (2, 42564110), (4, 21282055), (5, 17025644), (10, 8512822), (20, 4256411), (73, 1166140), (146, 583070), (199, 427780), (292, 291535), (293, 290540), (365, 233228), (398, 213890), (586, 145270), (730, 116614), (796, 106945), (995, 85556), (1172, 72635), (1460, 58307), (1465, 58108), (1990, 42778), (2930, 29054), (3980, 21389), (5860, 14527)]