128429960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{811}}^1$

素因数の和:966

約数の個数: 64

約数和(自身を含む): 299920320

約数和(自身を除く): 171490360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 107, 148, 185, 214, 296, 370, 428, 535, 740, 811, 856, 1070, 1480, 1622, 2140, 3244, 3959, 4055, 4280, 6488, 7918, 8110, 15836, 16220, 19795, 30007, 31672, 32440, 39590, 60014, 79180, 86777, 120028, 150035, 158360, 173554, 240056, 300070, 347108, 433885, 600140, 694216, 867770, 1200280, 1735540, 3210749, 3471080, 6421498, 12842996, 16053745, 25685992, 32107490, 64214980, 128429960]

約数ペア:

[(1, 128429960), (2, 64214980), (4, 32107490), (5, 25685992), (8, 16053745), (10, 12842996), (20, 6421498), (37, 3471080), (40, 3210749), (74, 1735540), (107, 1200280), (148, 867770), (185, 694216), (214, 600140), (296, 433885), (370, 347108), (428, 300070), (535, 240056), (740, 173554), (811, 158360), (856, 150035), (1070, 120028), (1480, 86777), (1622, 79180), (2140, 60014), (3244, 39590), (3959, 32440), (4055, 31672), (4280, 30007), (6488, 19795), (7918, 16220), (8110, 15836)]