20659590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:683

約数の個数: 128

約数和(自身を含む): 66769920

約数和(自身を除く): 46110330

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, 643, 714, 765, 918, 945, 1071, 1190, 1286, 1530, 1785, 1890, 1929, 2142, 2295, 3213, 3215, 3570, 3858, 4501, 4590, 5355, 5787, 6426, 6430, 9002, 9645, 10710, 10931, 11574, 13503, 16065, 17361, 19290, 21862, 22505, 27006, 28935, 32130, 32793, 34722, 40509, 45010, 54655, 57870, 65586, 67515, 76517, 81018, 86805, 98379, 109310, 121527, 135030, 153034, 163965, 173610, 196758, 202545, 229551, 243054, 295137, 327930, 382585, 405090, 459102, 491895, 590274, 607635, 688653, 765170, 983790, 1147755, 1215270, 1377306, 1475685, 2065959, 2295510, 2951370, 3443265, 4131918, 6886530, 10329795, 20659590]

約数ペア:

[(1, 20659590), (2, 10329795), (3, 6886530), (5, 4131918), (6, 3443265), (7, 2951370), (9, 2295510), (10, 2065959), (14, 1475685), (15, 1377306), (17, 1215270), (18, 1147755), (21, 983790), (27, 765170), (30, 688653), (34, 607635), (35, 590274), (42, 491895), (45, 459102), (51, 405090), (54, 382585), (63, 327930), (70, 295137), (85, 243054), (90, 229551), (102, 202545), (105, 196758), (119, 173610), (126, 163965), (135, 153034), (153, 135030), (170, 121527), (189, 109310), (210, 98379), (238, 86805), (255, 81018), (270, 76517), (306, 67515), (315, 65586), (357, 57870), (378, 54655), (459, 45010), (510, 40509), (595, 34722), (630, 32793), (643, 32130), (714, 28935), (765, 27006), (918, 22505), (945, 21862), (1071, 19290), (1190, 17361), (1286, 16065), (1530, 13503), (1785, 11574), (1890, 10931), (1929, 10710), (2142, 9645), (2295, 9002), (3213, 6430), (3215, 6426), (3570, 5787), (3858, 5355), (4501, 4590)]