54949995

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 107041440

約数和(自身を除く): 52091445

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 81, 95, 111, 135, 171, 185, 193, 285, 333, 405, 513, 555, 579, 703, 855, 965, 999, 1539, 1665, 1737, 2109, 2565, 2895, 2997, 3515, 3667, 4995, 5211, 6327, 7141, 7695, 8685, 10545, 11001, 14985, 15633, 18335, 18981, 21423, 26055, 31635, 33003, 35705, 55005, 56943, 64269, 78165, 94905, 99009, 107115, 135679, 165015, 192807, 284715, 297027, 321345, 407037, 495045, 578421, 678395, 964035, 1221111, 1485135, 2035185, 2892105, 3663333, 6105555, 10989999, 18316665, 54949995]

約数ペア:

[(1, 54949995), (3, 18316665), (5, 10989999), (9, 6105555), (15, 3663333), (19, 2892105), (27, 2035185), (37, 1485135), (45, 1221111), (57, 964035), (81, 678395), (95, 578421), (111, 495045), (135, 407037), (171, 321345), (185, 297027), (193, 284715), (285, 192807), (333, 165015), (405, 135679), (513, 107115), (555, 99009), (579, 94905), (703, 78165), (855, 64269), (965, 56943), (999, 55005), (1539, 35705), (1665, 33003), (1737, 31635), (2109, 26055), (2565, 21423), (2895, 18981), (2997, 18335), (3515, 15633), (3667, 14985), (4995, 11001), (5211, 10545), (6327, 8685), (7141, 7695)]