205122780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1145

約数の個数: 120

約数和(自身を含む): 649195008

約数和(自身を除く): 444072228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 127, 135, 162, 180, 254, 270, 324, 381, 405, 508, 540, 635, 762, 810, 997, 1143, 1270, 1524, 1620, 1905, 1994, 2286, 2540, 2991, 3429, 3810, 3988, 4572, 4985, 5715, 5982, 6858, 7620, 8973, 9970, 10287, 11430, 11964, 13716, 14955, 17145, 17946, 19940, 20574, 22860, 26919, 29910, 34290, 35892, 41148, 44865, 51435, 53838, 59820, 68580, 80757, 89730, 102870, 107676, 126619, 134595, 161514, 179460, 205740, 253238, 269190, 323028, 379857, 403785, 506476, 538380, 633095, 759714, 807570, 1139571, 1266190, 1519428, 1615140, 1899285, 2279142, 2532380, 3418713, 3798570, 4558284, 5697855, 6837426, 7597140, 10256139, 11395710, 13674852, 17093565, 20512278, 22791420, 34187130, 41024556, 51280695, 68374260, 102561390, 205122780]

約数ペア:

[(1, 205122780), (2, 102561390), (3, 68374260), (4, 51280695), (5, 41024556), (6, 34187130), (9, 22791420), (10, 20512278), (12, 17093565), (15, 13674852), (18, 11395710), (20, 10256139), (27, 7597140), (30, 6837426), (36, 5697855), (45, 4558284), (54, 3798570), (60, 3418713), (81, 2532380), (90, 2279142), (108, 1899285), (127, 1615140), (135, 1519428), (162, 1266190), (180, 1139571), (254, 807570), (270, 759714), (324, 633095), (381, 538380), (405, 506476), (508, 403785), (540, 379857), (635, 323028), (762, 269190), (810, 253238), (997, 205740), (1143, 179460), (1270, 161514), (1524, 134595), (1620, 126619), (1905, 107676), (1994, 102870), (2286, 89730), (2540, 80757), (2991, 68580), (3429, 59820), (3810, 53838), (3988, 51435), (4572, 44865), (4985, 41148), (5715, 35892), (5982, 34290), (6858, 29910), (7620, 26919), (8973, 22860), (9970, 20574), (10287, 19940), (11430, 17946), (11964, 17145), (13716, 14955)]