81117216

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{3967}}^1$

素因数の和:4054

約数の個数: 72

約数和(自身を含む): 233985024

約数和(自身を除く): 152867808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 1136, 1278, 1704, 2272, 2556, 3408, 3967, 5112, 6816, 7934, 10224, 11901, 15868, 20448, 23802, 31736, 35703, 47604, 63472, 71406, 95208, 126944, 142812, 190416, 281657, 285624, 380832, 563314, 571248, 844971, 1126628, 1142496, 1689942, 2253256, 2534913, 3379884, 4506512, 5069826, 6759768, 9013024, 10139652, 13519536, 20279304, 27039072, 40558608, 81117216]

約数ペア:

[(1, 81117216), (2, 40558608), (3, 27039072), (4, 20279304), (6, 13519536), (8, 10139652), (9, 9013024), (12, 6759768), (16, 5069826), (18, 4506512), (24, 3379884), (32, 2534913), (36, 2253256), (48, 1689942), (71, 1142496), (72, 1126628), (96, 844971), (142, 571248), (144, 563314), (213, 380832), (284, 285624), (288, 281657), (426, 190416), (568, 142812), (639, 126944), (852, 95208), (1136, 71406), (1278, 63472), (1704, 47604), (2272, 35703), (2556, 31736), (3408, 23802), (3967, 20448), (5112, 15868), (6816, 11901), (7934, 10224)]