20180286

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 31521474

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 197, 271, 378, 394, 542, 591, 813, 1182, 1379, 1626, 1773, 1897, 2439, 2758, 3546, 3794, 4137, 4878, 5319, 5691, 7317, 8274, 10638, 11382, 12411, 14634, 17073, 24822, 34146, 37233, 51219, 53387, 74466, 102438, 106774, 160161, 320322, 373709, 480483, 747418, 960966, 1121127, 1441449, 2242254, 2882898, 3363381, 6726762, 10090143, 20180286]

約数ペア:

[(1, 20180286), (2, 10090143), (3, 6726762), (6, 3363381), (7, 2882898), (9, 2242254), (14, 1441449), (18, 1121127), (21, 960966), (27, 747418), (42, 480483), (54, 373709), (63, 320322), (126, 160161), (189, 106774), (197, 102438), (271, 74466), (378, 53387), (394, 51219), (542, 37233), (591, 34146), (813, 24822), (1182, 17073), (1379, 14634), (1626, 12411), (1773, 11382), (1897, 10638), (2439, 8274), (2758, 7317), (3546, 5691), (3794, 5319), (4137, 4878)]