257209290

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:733

約数の個数: 128

約数和(自身を含む): 745758720

約数和(自身を除く): 488549430

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 127, 130, 135, 195, 234, 254, 270, 351, 381, 390, 577, 585, 635, 702, 762, 1143, 1154, 1170, 1270, 1651, 1731, 1755, 1905, 2286, 2885, 3302, 3429, 3462, 3510, 3810, 4953, 5193, 5715, 5770, 6858, 7501, 8255, 8655, 9906, 10386, 11430, 14859, 15002, 15579, 16510, 17145, 17310, 22503, 24765, 25965, 29718, 31158, 34290, 37505, 44577, 45006, 49530, 51930, 67509, 73279, 74295, 75010, 77895, 89154, 112515, 135018, 146558, 148590, 155790, 202527, 219837, 222885, 225030, 337545, 366395, 405054, 439674, 445770, 659511, 675090, 732790, 952627, 1012635, 1099185, 1319022, 1905254, 1978533, 2025270, 2198370, 2857881, 3297555, 3957066, 4763135, 5715762, 6595110, 8573643, 9526270, 9892665, 14289405, 17147286, 19785330, 25720929, 28578810, 42868215, 51441858, 85736430, 128604645, 257209290]

約数ペア:

[(1, 257209290), (2, 128604645), (3, 85736430), (5, 51441858), (6, 42868215), (9, 28578810), (10, 25720929), (13, 19785330), (15, 17147286), (18, 14289405), (26, 9892665), (27, 9526270), (30, 8573643), (39, 6595110), (45, 5715762), (54, 4763135), (65, 3957066), (78, 3297555), (90, 2857881), (117, 2198370), (127, 2025270), (130, 1978533), (135, 1905254), (195, 1319022), (234, 1099185), (254, 1012635), (270, 952627), (351, 732790), (381, 675090), (390, 659511), (577, 445770), (585, 439674), (635, 405054), (702, 366395), (762, 337545), (1143, 225030), (1154, 222885), (1170, 219837), (1270, 202527), (1651, 155790), (1731, 148590), (1755, 146558), (1905, 135018), (2286, 112515), (2885, 89154), (3302, 77895), (3429, 75010), (3462, 74295), (3510, 73279), (3810, 67509), (4953, 51930), (5193, 49530), (5715, 45006), (5770, 44577), (6858, 37505), (7501, 34290), (8255, 31158), (8655, 29718), (9906, 25965), (10386, 24765), (11430, 22503), (14859, 17310), (15002, 17145), (15579, 16510)]