257581422

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:650

約数の個数: 96

約数和(自身を含む): 665496000

約数和(自身を除く): 407914578

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 157, 174, 203, 261, 314, 406, 449, 471, 522, 609, 898, 942, 1099, 1218, 1347, 1413, 1827, 2198, 2694, 2826, 3143, 3297, 3654, 4041, 4553, 6286, 6594, 8082, 9106, 9429, 9891, 13021, 13659, 18858, 19782, 26042, 27318, 28287, 31871, 39063, 40977, 56574, 63742, 70493, 78126, 81954, 91147, 95613, 117189, 140986, 182294, 191226, 211479, 234378, 273441, 286839, 422958, 493451, 546882, 573678, 634437, 820323, 986902, 1268874, 1480353, 1640646, 2044297, 2960706, 4088594, 4441059, 6132891, 8882118, 12265782, 14310079, 18398673, 28620158, 36797346, 42930237, 85860474, 128790711, 257581422]

約数ペア:

[(1, 257581422), (2, 128790711), (3, 85860474), (6, 42930237), (7, 36797346), (9, 28620158), (14, 18398673), (18, 14310079), (21, 12265782), (29, 8882118), (42, 6132891), (58, 4441059), (63, 4088594), (87, 2960706), (126, 2044297), (157, 1640646), (174, 1480353), (203, 1268874), (261, 986902), (314, 820323), (406, 634437), (449, 573678), (471, 546882), (522, 493451), (609, 422958), (898, 286839), (942, 273441), (1099, 234378), (1218, 211479), (1347, 191226), (1413, 182294), (1827, 140986), (2198, 117189), (2694, 95613), (2826, 91147), (3143, 81954), (3297, 78126), (3654, 70493), (4041, 63742), (4553, 56574), (6286, 40977), (6594, 39063), (8082, 31871), (9106, 28287), (9429, 27318), (9891, 26042), (13021, 19782), (13659, 18858)]