164080720

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{3643}}^1$

素因数の和:4219

約数の個数: 40

約数和(自身を含む): 382270176

約数和(自身を除く): 218189456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 1126, 2252, 2815, 3643, 4504, 5630, 7286, 9008, 11260, 14572, 18215, 22520, 29144, 36430, 45040, 58288, 72860, 145720, 291440, 2051009, 4102018, 8204036, 10255045, 16408072, 20510090, 32816144, 41020180, 82040360, 164080720]

約数ペア:

[(1, 164080720), (2, 82040360), (4, 41020180), (5, 32816144), (8, 20510090), (10, 16408072), (16, 10255045), (20, 8204036), (40, 4102018), (80, 2051009), (563, 291440), (1126, 145720), (2252, 72860), (2815, 58288), (3643, 45040), (4504, 36430), (5630, 29144), (7286, 22520), (9008, 18215), (11260, 14572)]