28154295

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 30813705

約数列:

[1, 3, 5, 9, 13, 15, 17, 19, 39, 45, 51, 57, 65, 85, 95, 117, 149, 153, 171, 195, 221, 247, 255, 285, 323, 447, 585, 663, 741, 745, 765, 855, 969, 1105, 1235, 1341, 1615, 1937, 1989, 2223, 2235, 2533, 2831, 2907, 3315, 3705, 4199, 4845, 5811, 6705, 7599, 8493, 9685, 9945, 11115, 12597, 12665, 14155, 14535, 17433, 20995, 22797, 25479, 29055, 32929, 36803, 37791, 37995, 42465, 48127, 62985, 87165, 98787, 110409, 113985, 127395, 144381, 164645, 184015, 188955, 240635, 296361, 331227, 433143, 493935, 552045, 625651, 721905, 1481805, 1656135, 1876953, 2165715, 3128255, 5630859, 9384765, 28154295]

約数ペア:

[(1, 28154295), (3, 9384765), (5, 5630859), (9, 3128255), (13, 2165715), (15, 1876953), (17, 1656135), (19, 1481805), (39, 721905), (45, 625651), (51, 552045), (57, 493935), (65, 433143), (85, 331227), (95, 296361), (117, 240635), (149, 188955), (153, 184015), (171, 164645), (195, 144381), (221, 127395), (247, 113985), (255, 110409), (285, 98787), (323, 87165), (447, 62985), (585, 48127), (663, 42465), (741, 37995), (745, 37791), (765, 36803), (855, 32929), (969, 29055), (1105, 25479), (1235, 22797), (1341, 20995), (1615, 17433), (1937, 14535), (1989, 14155), (2223, 12665), (2235, 12597), (2533, 11115), (2831, 9945), (2907, 9685), (3315, 8493), (3705, 7599), (4199, 6705), (4845, 5811)]