81663232

素因数分解:

$2^8\times 7^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 188048000

約数和(自身を除く): 106384768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 199, 224, 229, 256, 398, 448, 458, 796, 896, 916, 1393, 1592, 1603, 1792, 1832, 2786, 3184, 3206, 3664, 5572, 6368, 6412, 7328, 11144, 12736, 12824, 14656, 22288, 25472, 25648, 29312, 44576, 45571, 50944, 51296, 58624, 89152, 91142, 102592, 178304, 182284, 205184, 318997, 356608, 364568, 410368, 637994, 729136, 1275988, 1458272, 2551976, 2916544, 5103952, 5833088, 10207904, 11666176, 20415808, 40831616, 81663232]

約数ペア:

[(1, 81663232), (2, 40831616), (4, 20415808), (7, 11666176), (8, 10207904), (14, 5833088), (16, 5103952), (28, 2916544), (32, 2551976), (56, 1458272), (64, 1275988), (112, 729136), (128, 637994), (199, 410368), (224, 364568), (229, 356608), (256, 318997), (398, 205184), (448, 182284), (458, 178304), (796, 102592), (896, 91142), (916, 89152), (1393, 58624), (1592, 51296), (1603, 50944), (1792, 45571), (1832, 44576), (2786, 29312), (3184, 25648), (3206, 25472), (3664, 22288), (5572, 14656), (6368, 12824), (6412, 12736), (7328, 11144)]