20342952525

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:804

約数の個数: 144

約数和(自身を含む): 40430638464

約数和(自身を除く): 20087685939

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 61, 75, 93, 105, 155, 175, 183, 217, 305, 427, 465, 525, 651, 661, 775, 915, 961, 1085, 1281, 1525, 1891, 1983, 2135, 2325, 2883, 3255, 3305, 4575, 4627, 4805, 5425, 5673, 6405, 6727, 9455, 9915, 10675, 13237, 13881, 14415, 16275, 16525, 20181, 20491, 23135, 24025, 28365, 32025, 33635, 39711, 40321, 47275, 49575, 58621, 61473, 66185, 69405, 72075, 100905, 102455, 115675, 120963, 141825, 143437, 168175, 175863, 198555, 201605, 282247, 293105, 307365, 330925, 347025, 410347, 430311, 504525, 512275, 604815, 635221, 717185, 846741, 879315, 992775, 1008025, 1231041, 1249951, 1411235, 1465525, 1536825, 1905663, 2051735, 2151555, 3024075, 3176105, 3585925, 3749853, 4233705, 4396575, 4446547, 6155205, 6249755, 7056175, 8749657, 9528315, 10258675, 10757775, 13339641, 15880525, 18749265, 21168525, 22232735, 26248971, 30776025, 31248775, 38748481, 43748285, 47641575, 66698205, 93746325, 111163675, 116245443, 131244855, 193742405, 218741425, 271239367, 333491025, 581227215, 656224275, 813718101, 968712025, 1356196835, 2906136075, 4068590505, 6780984175, 20342952525]

約数ペア:

[(1, 20342952525), (3, 6780984175), (5, 4068590505), (7, 2906136075), (15, 1356196835), (21, 968712025), (25, 813718101), (31, 656224275), (35, 581227215), (61, 333491025), (75, 271239367), (93, 218741425), (105, 193742405), (155, 131244855), (175, 116245443), (183, 111163675), (217, 93746325), (305, 66698205), (427, 47641575), (465, 43748285), (525, 38748481), (651, 31248775), (661, 30776025), (775, 26248971), (915, 22232735), (961, 21168525), (1085, 18749265), (1281, 15880525), (1525, 13339641), (1891, 10757775), (1983, 10258675), (2135, 9528315), (2325, 8749657), (2883, 7056175), (3255, 6249755), (3305, 6155205), (4575, 4446547), (4627, 4396575), (4805, 4233705), (5425, 3749853), (5673, 3585925), (6405, 3176105), (6727, 3024075), (9455, 2151555), (9915, 2051735), (10675, 1905663), (13237, 1536825), (13881, 1465525), (14415, 1411235), (16275, 1249951), (16525, 1231041), (20181, 1008025), (20491, 992775), (23135, 879315), (24025, 846741), (28365, 717185), (32025, 635221), (33635, 604815), (39711, 512275), (40321, 504525), (47275, 430311), (49575, 410347), (58621, 347025), (61473, 330925), (66185, 307365), (69405, 293105), (72075, 282247), (100905, 201605), (102455, 198555), (115675, 175863), (120963, 168175), (141825, 143437)]