81405864

素因数分解:

$2^3\times 3^3\times {\mathrm{263}}^1\times {\mathrm{1433}}^1$

素因数の和:1711

約数の個数: 64

約数和(自身を含む): 227145600

約数和(自身を除く): 145739736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 263, 526, 789, 1052, 1433, 1578, 2104, 2367, 2866, 3156, 4299, 4734, 5732, 6312, 7101, 8598, 9468, 11464, 12897, 14202, 17196, 18936, 25794, 28404, 34392, 38691, 51588, 56808, 77382, 103176, 154764, 309528, 376879, 753758, 1130637, 1507516, 2261274, 3015032, 3391911, 4522548, 6783822, 9045096, 10175733, 13567644, 20351466, 27135288, 40702932, 81405864]

約数ペア:

[(1, 81405864), (2, 40702932), (3, 27135288), (4, 20351466), (6, 13567644), (8, 10175733), (9, 9045096), (12, 6783822), (18, 4522548), (24, 3391911), (27, 3015032), (36, 2261274), (54, 1507516), (72, 1130637), (108, 753758), (216, 376879), (263, 309528), (526, 154764), (789, 103176), (1052, 77382), (1433, 56808), (1578, 51588), (2104, 38691), (2367, 34392), (2866, 28404), (3156, 25794), (4299, 18936), (4734, 17196), (5732, 14202), (6312, 12897), (7101, 11464), (8598, 9468)]