255722120

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{709}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 588902400

約数和(自身を除く): 333180280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 127, 142, 254, 284, 355, 508, 568, 635, 709, 710, 1016, 1270, 1418, 1420, 2540, 2836, 2840, 3545, 5080, 5672, 7090, 9017, 14180, 18034, 28360, 36068, 45085, 50339, 72136, 90043, 90170, 100678, 180086, 180340, 201356, 251695, 360172, 360680, 402712, 450215, 503390, 720344, 900430, 1006780, 1800860, 2013560, 3601720, 6393053, 12786106, 25572212, 31965265, 51144424, 63930530, 127861060, 255722120]

約数ペア:

[(1, 255722120), (2, 127861060), (4, 63930530), (5, 51144424), (8, 31965265), (10, 25572212), (20, 12786106), (40, 6393053), (71, 3601720), (127, 2013560), (142, 1800860), (254, 1006780), (284, 900430), (355, 720344), (508, 503390), (568, 450215), (635, 402712), (709, 360680), (710, 360172), (1016, 251695), (1270, 201356), (1418, 180340), (1420, 180086), (2540, 100678), (2836, 90170), (2840, 90043), (3545, 72136), (5080, 50339), (5672, 45085), (7090, 36068), (9017, 28360), (14180, 18034)]