215239128

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{689869}}^1$

素因数の和:689891

約数の個数: 32

約数和(自身を含む): 579490800

約数和(自身を除く): 364251672

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 689869, 1379738, 2069607, 2759476, 4139214, 5518952, 8278428, 8968297, 16556856, 17936594, 26904891, 35873188, 53809782, 71746376, 107619564, 215239128]

約数ペア:

[(1, 215239128), (2, 107619564), (3, 71746376), (4, 53809782), (6, 35873188), (8, 26904891), (12, 17936594), (13, 16556856), (24, 8968297), (26, 8278428), (39, 5518952), (52, 4139214), (78, 2759476), (104, 2069607), (156, 1379738), (312, 689869)]