28306530

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:921

約数の個数: 128

約数和(自身を含む): 91445760

約数和(自身を除く): 63139230

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 27, 30, 34, 35, 42, 45, 51, 54, 63, 70, 85, 90, 102, 105, 119, 126, 135, 153, 170, 189, 210, 238, 255, 270, 306, 315, 357, 378, 459, 510, 595, 630, 714, 765, 881, 918, 945, 1071, 1190, 1530, 1762, 1785, 1890, 2142, 2295, 2643, 3213, 3570, 4405, 4590, 5286, 5355, 6167, 6426, 7929, 8810, 10710, 12334, 13215, 14977, 15858, 16065, 18501, 23787, 26430, 29954, 30835, 32130, 37002, 39645, 44931, 47574, 55503, 61670, 74885, 79290, 89862, 92505, 104839, 111006, 118935, 134793, 149770, 166509, 185010, 209678, 224655, 237870, 269586, 277515, 314517, 333018, 404379, 449310, 524195, 555030, 629034, 673965, 808758, 832545, 943551, 1048390, 1347930, 1572585, 1665090, 1887102, 2021895, 2830653, 3145170, 4043790, 4717755, 5661306, 9435510, 14153265, 28306530]

約数ペア:

[(1, 28306530), (2, 14153265), (3, 9435510), (5, 5661306), (6, 4717755), (7, 4043790), (9, 3145170), (10, 2830653), (14, 2021895), (15, 1887102), (17, 1665090), (18, 1572585), (21, 1347930), (27, 1048390), (30, 943551), (34, 832545), (35, 808758), (42, 673965), (45, 629034), (51, 555030), (54, 524195), (63, 449310), (70, 404379), (85, 333018), (90, 314517), (102, 277515), (105, 269586), (119, 237870), (126, 224655), (135, 209678), (153, 185010), (170, 166509), (189, 149770), (210, 134793), (238, 118935), (255, 111006), (270, 104839), (306, 92505), (315, 89862), (357, 79290), (378, 74885), (459, 61670), (510, 55503), (595, 47574), (630, 44931), (714, 39645), (765, 37002), (881, 32130), (918, 30835), (945, 29954), (1071, 26430), (1190, 23787), (1530, 18501), (1762, 16065), (1785, 15858), (1890, 14977), (2142, 13215), (2295, 12334), (2643, 10710), (3213, 8810), (3570, 7929), (4405, 6426), (4590, 6167), (5286, 5355)]