81881580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1279}}^1$

素因数の和:1399

約数の個数: 96

約数和(自身を含む): 252887040

約数和(自身を除く): 171005460

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 97, 110, 132, 165, 194, 220, 291, 330, 388, 485, 582, 660, 970, 1067, 1164, 1279, 1455, 1940, 2134, 2558, 2910, 3201, 3837, 4268, 5116, 5335, 5820, 6395, 6402, 7674, 10670, 12790, 12804, 14069, 15348, 16005, 19185, 21340, 25580, 28138, 32010, 38370, 42207, 56276, 64020, 70345, 76740, 84414, 124063, 140690, 168828, 211035, 248126, 281380, 372189, 422070, 496252, 620315, 744378, 844140, 1240630, 1364693, 1488756, 1860945, 2481260, 2729386, 3721890, 4094079, 5458772, 6823465, 7443780, 8188158, 13646930, 16376316, 20470395, 27293860, 40940790, 81881580]

約数ペア:

[(1, 81881580), (2, 40940790), (3, 27293860), (4, 20470395), (5, 16376316), (6, 13646930), (10, 8188158), (11, 7443780), (12, 6823465), (15, 5458772), (20, 4094079), (22, 3721890), (30, 2729386), (33, 2481260), (44, 1860945), (55, 1488756), (60, 1364693), (66, 1240630), (97, 844140), (110, 744378), (132, 620315), (165, 496252), (194, 422070), (220, 372189), (291, 281380), (330, 248126), (388, 211035), (485, 168828), (582, 140690), (660, 124063), (970, 84414), (1067, 76740), (1164, 70345), (1279, 64020), (1455, 56276), (1940, 42207), (2134, 38370), (2558, 32010), (2910, 28138), (3201, 25580), (3837, 21340), (4268, 19185), (5116, 16005), (5335, 15348), (5820, 14069), (6395, 12804), (6402, 12790), (7674, 10670)]