208734280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127277}}^1$

素因数の和:127329

約数の個数: 32

約数和(自身を含む): 481110840

約数和(自身を除く): 272376560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 127277, 254554, 509108, 636385, 1018216, 1272770, 2545540, 5091080, 5218357, 10436714, 20873428, 26091785, 41746856, 52183570, 104367140, 208734280]

約数ペア:

[(1, 208734280), (2, 104367140), (4, 52183570), (5, 41746856), (8, 26091785), (10, 20873428), (20, 10436714), (40, 5218357), (41, 5091080), (82, 2545540), (164, 1272770), (205, 1018216), (328, 636385), (410, 509108), (820, 254554), (1640, 127277)]