78877964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{162971}}^1$

素因数の和:162997

約数の個数: 18

約数和(自身を含む): 151726932

約数和(自身を除く): 72848968

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 162971, 325942, 651884, 1792681, 3585362, 7170724, 19719491, 39438982, 78877964]

約数ペア:

[(1, 78877964), (2, 39438982), (4, 19719491), (11, 7170724), (22, 3585362), (44, 1792681), (121, 651884), (242, 325942), (484, 162971)]