20727420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2903}}^1$

素因数の和:2939

約数の個数: 96

約数和(自身を含む): 70253568

約数和(自身を除く): 49526148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 2903, 3570, 5806, 7140, 8709, 11612, 14515, 17418, 20321, 29030, 34836, 40642, 43545, 49351, 58060, 60963, 81284, 87090, 98702, 101605, 121926, 148053, 174180, 197404, 203210, 243852, 246755, 296106, 304815, 345457, 406420, 493510, 592212, 609630, 690914, 740265, 987020, 1036371, 1219260, 1381828, 1480530, 1727285, 2072742, 2961060, 3454570, 4145484, 5181855, 6909140, 10363710, 20727420]

約数ペア:

[(1, 20727420), (2, 10363710), (3, 6909140), (4, 5181855), (5, 4145484), (6, 3454570), (7, 2961060), (10, 2072742), (12, 1727285), (14, 1480530), (15, 1381828), (17, 1219260), (20, 1036371), (21, 987020), (28, 740265), (30, 690914), (34, 609630), (35, 592212), (42, 493510), (51, 406420), (60, 345457), (68, 304815), (70, 296106), (84, 246755), (85, 243852), (102, 203210), (105, 197404), (119, 174180), (140, 148053), (170, 121926), (204, 101605), (210, 98702), (238, 87090), (255, 81284), (340, 60963), (357, 58060), (420, 49351), (476, 43545), (510, 40642), (595, 34836), (714, 29030), (1020, 20321), (1190, 17418), (1428, 14515), (1785, 11612), (2380, 8709), (2903, 7140), (3570, 5806)]