81398160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{863}}^1$

素因数の和:1013

約数の個数: 120

約数和(自身を含む): 275768064

約数和(自身を除く): 194369904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 131, 144, 180, 240, 262, 360, 393, 524, 655, 720, 786, 863, 1048, 1179, 1310, 1572, 1726, 1965, 2096, 2358, 2589, 2620, 3144, 3452, 3930, 4315, 4716, 5178, 5240, 5895, 6288, 6904, 7767, 7860, 8630, 9432, 10356, 10480, 11790, 12945, 13808, 15534, 15720, 17260, 18864, 20712, 23580, 25890, 31068, 31440, 34520, 38835, 41424, 47160, 51780, 62136, 69040, 77670, 94320, 103560, 113053, 124272, 155340, 207120, 226106, 310680, 339159, 452212, 565265, 621360, 678318, 904424, 1017477, 1130530, 1356636, 1695795, 1808848, 2034954, 2261060, 2713272, 3391590, 4069908, 4522120, 5087385, 5426544, 6783180, 8139816, 9044240, 10174770, 13566360, 16279632, 20349540, 27132720, 40699080, 81398160]

約数ペア:

[(1, 81398160), (2, 40699080), (3, 27132720), (4, 20349540), (5, 16279632), (6, 13566360), (8, 10174770), (9, 9044240), (10, 8139816), (12, 6783180), (15, 5426544), (16, 5087385), (18, 4522120), (20, 4069908), (24, 3391590), (30, 2713272), (36, 2261060), (40, 2034954), (45, 1808848), (48, 1695795), (60, 1356636), (72, 1130530), (80, 1017477), (90, 904424), (120, 678318), (131, 621360), (144, 565265), (180, 452212), (240, 339159), (262, 310680), (360, 226106), (393, 207120), (524, 155340), (655, 124272), (720, 113053), (786, 103560), (863, 94320), (1048, 77670), (1179, 69040), (1310, 62136), (1572, 51780), (1726, 47160), (1965, 41424), (2096, 38835), (2358, 34520), (2589, 31440), (2620, 31068), (3144, 25890), (3452, 23580), (3930, 20712), (4315, 18864), (4716, 17260), (5178, 15720), (5240, 15534), (5895, 13808), (6288, 12945), (6904, 11790), (7767, 10480), (7860, 10356), (8630, 9432)]