128509904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{276961}}^1$

素因数の和:276998

約数の個数: 20

約数和(自身を含む): 257574660

約数和(自身を除く): 129064756

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 276961, 553922, 1107844, 2215688, 4431376, 8031869, 16063738, 32127476, 64254952, 128509904]

約数ペア:

[(1, 128509904), (2, 64254952), (4, 32127476), (8, 16063738), (16, 8031869), (29, 4431376), (58, 2215688), (116, 1107844), (232, 553922), (464, 276961)]