256546290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8543}}^1$

素因数の和:8584

約数の個数: 128

約数和(自身を含む): 826785792

約数和(自身を除く): 570239502

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 26, 30, 33, 35, 39, 42, 55, 65, 66, 70, 77, 78, 91, 105, 110, 130, 143, 154, 165, 182, 195, 210, 231, 273, 286, 330, 385, 390, 429, 455, 462, 546, 715, 770, 858, 910, 1001, 1155, 1365, 1430, 2002, 2145, 2310, 2730, 3003, 4290, 5005, 6006, 8543, 10010, 15015, 17086, 25629, 30030, 42715, 51258, 59801, 85430, 93973, 111059, 119602, 128145, 179403, 187946, 222118, 256290, 281919, 299005, 333177, 358806, 469865, 555295, 563838, 598010, 657811, 666354, 777413, 897015, 939730, 1110590, 1221649, 1315622, 1409595, 1554826, 1665885, 1794030, 1973433, 2332239, 2443298, 2819190, 3289055, 3331770, 3664947, 3887065, 3946866, 4664478, 6108245, 6578110, 7329894, 7774130, 8551543, 9867165, 11661195, 12216490, 17103086, 18324735, 19734330, 23322390, 25654629, 36649470, 42757715, 51309258, 85515430, 128273145, 256546290]

約数ペア:

[(1, 256546290), (2, 128273145), (3, 85515430), (5, 51309258), (6, 42757715), (7, 36649470), (10, 25654629), (11, 23322390), (13, 19734330), (14, 18324735), (15, 17103086), (21, 12216490), (22, 11661195), (26, 9867165), (30, 8551543), (33, 7774130), (35, 7329894), (39, 6578110), (42, 6108245), (55, 4664478), (65, 3946866), (66, 3887065), (70, 3664947), (77, 3331770), (78, 3289055), (91, 2819190), (105, 2443298), (110, 2332239), (130, 1973433), (143, 1794030), (154, 1665885), (165, 1554826), (182, 1409595), (195, 1315622), (210, 1221649), (231, 1110590), (273, 939730), (286, 897015), (330, 777413), (385, 666354), (390, 657811), (429, 598010), (455, 563838), (462, 555295), (546, 469865), (715, 358806), (770, 333177), (858, 299005), (910, 281919), (1001, 256290), (1155, 222118), (1365, 187946), (1430, 179403), (2002, 128145), (2145, 119602), (2310, 111059), (2730, 93973), (3003, 85430), (4290, 59801), (5005, 51258), (6006, 42715), (8543, 30030), (10010, 25629), (15015, 17086)]