78987856

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{55469}}^1$

素因数の和:55566

約数の個数: 20

約数和(自身を含む): 154761300

約数和(自身を除く): 75773444

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 55469, 110938, 221876, 443752, 887504, 4936741, 9873482, 19746964, 39493928, 78987856]

約数ペア:

[(1, 78987856), (2, 39493928), (4, 19746964), (8, 9873482), (16, 4936741), (89, 887504), (178, 443752), (356, 221876), (712, 110938), (1424, 55469)]