1278989864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{13127}}^1$

素因数の和:13793

約数の個数: 32

約数和(自身を含む): 2528452800

約数和(自身を除く): 1249462936

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 641, 1282, 2564, 5128, 12179, 13127, 24358, 26254, 48716, 52508, 97432, 105016, 249413, 498826, 997652, 1995304, 8414407, 16828814, 33657628, 67315256, 159873733, 319747466, 639494932, 1278989864]

約数ペア:

[(1, 1278989864), (2, 639494932), (4, 319747466), (8, 159873733), (19, 67315256), (38, 33657628), (76, 16828814), (152, 8414407), (641, 1995304), (1282, 997652), (2564, 498826), (5128, 249413), (12179, 105016), (13127, 97432), (24358, 52508), (26254, 48716)]