81213480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{521}}^1$

素因数の和:971

約数の個数: 96

約数和(自身を含む): 265061160

約数和(自身を除く): 183847680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 433, 521, 866, 1042, 1299, 1563, 1732, 2084, 2165, 2598, 2605, 3126, 3464, 3897, 4168, 4330, 4689, 5196, 5210, 6252, 6495, 7794, 7815, 8660, 9378, 10392, 10420, 12504, 12990, 15588, 15630, 17320, 18756, 19485, 20840, 23445, 25980, 31176, 31260, 37512, 38970, 46890, 51960, 62520, 77940, 93780, 155880, 187560, 225593, 451186, 676779, 902372, 1127965, 1353558, 1804744, 2030337, 2255930, 2707116, 3383895, 4060674, 4511860, 5414232, 6767790, 8121348, 9023720, 10151685, 13535580, 16242696, 20303370, 27071160, 40606740, 81213480]

約数ペア:

[(1, 81213480), (2, 40606740), (3, 27071160), (4, 20303370), (5, 16242696), (6, 13535580), (8, 10151685), (9, 9023720), (10, 8121348), (12, 6767790), (15, 5414232), (18, 4511860), (20, 4060674), (24, 3383895), (30, 2707116), (36, 2255930), (40, 2030337), (45, 1804744), (60, 1353558), (72, 1127965), (90, 902372), (120, 676779), (180, 451186), (360, 225593), (433, 187560), (521, 155880), (866, 93780), (1042, 77940), (1299, 62520), (1563, 51960), (1732, 46890), (2084, 38970), (2165, 37512), (2598, 31260), (2605, 31176), (3126, 25980), (3464, 23445), (3897, 20840), (4168, 19485), (4330, 18756), (4689, 17320), (5196, 15630), (5210, 15588), (6252, 12990), (6495, 12504), (7794, 10420), (7815, 10392), (8660, 9378)]