1290244816

素因数分解:

$2^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{90709}}^1$

素因数の和:90851

約数の個数: 40

約数和(自身を含む): 2879498240

約数和(自身を除く): 1589253424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 127, 254, 508, 889, 1016, 1778, 2032, 3556, 7112, 14224, 90709, 181418, 362836, 634963, 725672, 1269926, 1451344, 2539852, 5079704, 10159408, 11520043, 23040086, 46080172, 80640301, 92160344, 161280602, 184320688, 322561204, 645122408, 1290244816]

約数ペア:

[(1, 1290244816), (2, 645122408), (4, 322561204), (7, 184320688), (8, 161280602), (14, 92160344), (16, 80640301), (28, 46080172), (56, 23040086), (112, 11520043), (127, 10159408), (254, 5079704), (508, 2539852), (889, 1451344), (1016, 1269926), (1778, 725672), (2032, 634963), (3556, 362836), (7112, 181418), (14224, 90709)]