131489648

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{677}}^1$

素因数の和:945

約数の個数: 40

約数和(自身を含む): 260623200

約数和(自身を除く): 129133552

約数列:

[1, 2, 4, 8, 16, 61, 122, 199, 244, 398, 488, 677, 796, 976, 1354, 1592, 2708, 3184, 5416, 10832, 12139, 24278, 41297, 48556, 82594, 97112, 134723, 165188, 194224, 269446, 330376, 538892, 660752, 1077784, 2155568, 8218103, 16436206, 32872412, 65744824, 131489648]

約数ペア:

[(1, 131489648), (2, 65744824), (4, 32872412), (8, 16436206), (16, 8218103), (61, 2155568), (122, 1077784), (199, 660752), (244, 538892), (398, 330376), (488, 269446), (677, 194224), (796, 165188), (976, 134723), (1354, 97112), (1592, 82594), (2708, 48556), (3184, 41297), (5416, 24278), (10832, 12139)]