251013789

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 464486400

約数和(自身を除く): 213472611

約数列:

[1, 3, 9, 13, 17, 23, 27, 31, 39, 51, 59, 69, 93, 117, 153, 177, 207, 221, 279, 299, 351, 391, 403, 459, 527, 531, 621, 663, 713, 767, 837, 897, 1003, 1173, 1209, 1357, 1581, 1593, 1829, 1989, 2139, 2301, 2691, 3009, 3519, 3627, 4071, 4743, 5083, 5487, 5967, 6417, 6851, 6903, 8073, 9027, 9269, 10557, 10881, 12121, 12213, 13039, 14229, 15249, 16461, 17641, 19251, 20553, 20709, 23069, 23777, 27081, 27807, 31093, 36363, 36639, 39117, 42067, 45747, 49383, 52923, 61659, 69207, 71331, 83421, 93279, 109089, 117351, 126201, 137241, 157573, 158769, 184977, 207621, 213993, 250263, 279837, 299897, 327267, 352053, 378603, 404209, 472719, 476307, 546871, 622863, 641979, 715139, 839511, 899691, 1135809, 1212627, 1418157, 1640613, 2145417, 2699073, 3637881, 4254471, 4921839, 6436251, 8097219, 9296807, 10913643, 14765517, 19308753, 27890421, 83671263, 251013789]

約数ペア:

[(1, 251013789), (3, 83671263), (9, 27890421), (13, 19308753), (17, 14765517), (23, 10913643), (27, 9296807), (31, 8097219), (39, 6436251), (51, 4921839), (59, 4254471), (69, 3637881), (93, 2699073), (117, 2145417), (153, 1640613), (177, 1418157), (207, 1212627), (221, 1135809), (279, 899691), (299, 839511), (351, 715139), (391, 641979), (403, 622863), (459, 546871), (527, 476307), (531, 472719), (621, 404209), (663, 378603), (713, 352053), (767, 327267), (837, 299897), (897, 279837), (1003, 250263), (1173, 213993), (1209, 207621), (1357, 184977), (1581, 158769), (1593, 157573), (1829, 137241), (1989, 126201), (2139, 117351), (2301, 109089), (2691, 93279), (3009, 83421), (3519, 71331), (3627, 69207), (4071, 61659), (4743, 52923), (5083, 49383), (5487, 45747), (5967, 42067), (6417, 39117), (6851, 36639), (6903, 36363), (8073, 31093), (9027, 27807), (9269, 27081), (10557, 23777), (10881, 23069), (12121, 20709), (12213, 20553), (13039, 19251), (14229, 17641), (15249, 16461)]