15205905

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 33022080

約数和(自身を除く): 17816175

約数列:

[1, 3, 5, 9, 11, 13, 15, 17, 33, 39, 45, 51, 55, 65, 85, 99, 117, 139, 143, 153, 165, 187, 195, 221, 255, 417, 429, 495, 561, 585, 663, 695, 715, 765, 935, 1105, 1251, 1287, 1529, 1683, 1807, 1989, 2085, 2145, 2363, 2431, 2805, 3315, 4587, 5421, 6255, 6435, 7089, 7293, 7645, 8415, 9035, 9945, 11815, 12155, 13761, 16263, 19877, 21267, 21879, 22935, 25993, 27105, 30719, 35445, 36465, 59631, 68805, 77979, 81315, 92157, 99385, 106335, 109395, 129965, 153595, 178893, 233937, 276471, 298155, 337909, 389895, 460785, 894465, 1013727, 1169685, 1382355, 1689545, 3041181, 5068635, 15205905]

約数ペア:

[(1, 15205905), (3, 5068635), (5, 3041181), (9, 1689545), (11, 1382355), (13, 1169685), (15, 1013727), (17, 894465), (33, 460785), (39, 389895), (45, 337909), (51, 298155), (55, 276471), (65, 233937), (85, 178893), (99, 153595), (117, 129965), (139, 109395), (143, 106335), (153, 99385), (165, 92157), (187, 81315), (195, 77979), (221, 68805), (255, 59631), (417, 36465), (429, 35445), (495, 30719), (561, 27105), (585, 25993), (663, 22935), (695, 21879), (715, 21267), (765, 19877), (935, 16263), (1105, 13761), (1251, 12155), (1287, 11815), (1529, 9945), (1683, 9035), (1807, 8415), (1989, 7645), (2085, 7293), (2145, 7089), (2363, 6435), (2431, 6255), (2805, 5421), (3315, 4587)]