156174440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{433}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 359976960

約数和(自身を除く): 203802520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 127, 142, 254, 284, 355, 433, 508, 568, 635, 710, 866, 1016, 1270, 1420, 1732, 2165, 2540, 2840, 3464, 4330, 5080, 8660, 9017, 17320, 18034, 30743, 36068, 45085, 54991, 61486, 72136, 90170, 109982, 122972, 153715, 180340, 219964, 245944, 274955, 307430, 360680, 439928, 549910, 614860, 1099820, 1229720, 2199640, 3904361, 7808722, 15617444, 19521805, 31234888, 39043610, 78087220, 156174440]

約数ペア:

[(1, 156174440), (2, 78087220), (4, 39043610), (5, 31234888), (8, 19521805), (10, 15617444), (20, 7808722), (40, 3904361), (71, 2199640), (127, 1229720), (142, 1099820), (254, 614860), (284, 549910), (355, 439928), (433, 360680), (508, 307430), (568, 274955), (635, 245944), (710, 219964), (866, 180340), (1016, 153715), (1270, 122972), (1420, 109982), (1732, 90170), (2165, 72136), (2540, 61486), (2840, 54991), (3464, 45085), (4330, 36068), (5080, 30743), (8660, 18034), (9017, 17320)]