20474025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 41997312

約数和(自身を除く): 21523287

約数列:

[1, 3, 5, 11, 13, 15, 23, 25, 33, 39, 55, 65, 69, 75, 83, 115, 143, 165, 195, 249, 253, 275, 299, 325, 345, 415, 429, 575, 715, 759, 825, 897, 913, 975, 1079, 1245, 1265, 1495, 1725, 1909, 2075, 2145, 2739, 3237, 3289, 3575, 3795, 4485, 4565, 5395, 5727, 6225, 6325, 7475, 9545, 9867, 10725, 11869, 13695, 16185, 16445, 18975, 20999, 22425, 22825, 24817, 26975, 28635, 35607, 47725, 49335, 59345, 62997, 68475, 74451, 80925, 82225, 104995, 124085, 143175, 178035, 246675, 272987, 296725, 314985, 372255, 524975, 620425, 818961, 890175, 1364935, 1574925, 1861275, 4094805, 6824675, 20474025]

約数ペア:

[(1, 20474025), (3, 6824675), (5, 4094805), (11, 1861275), (13, 1574925), (15, 1364935), (23, 890175), (25, 818961), (33, 620425), (39, 524975), (55, 372255), (65, 314985), (69, 296725), (75, 272987), (83, 246675), (115, 178035), (143, 143175), (165, 124085), (195, 104995), (249, 82225), (253, 80925), (275, 74451), (299, 68475), (325, 62997), (345, 59345), (415, 49335), (429, 47725), (575, 35607), (715, 28635), (759, 26975), (825, 24817), (897, 22825), (913, 22425), (975, 20999), (1079, 18975), (1245, 16445), (1265, 16185), (1495, 13695), (1725, 11869), (1909, 10725), (2075, 9867), (2145, 9545), (2739, 7475), (3237, 6325), (3289, 6225), (3575, 5727), (3795, 5395), (4485, 4565)]