128401784

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53323}}^1$

素因数の和:53379

約数の個数: 32

約数和(自身を含む): 281550720

約数和(自身を除く): 153148936

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 53323, 106646, 213292, 373261, 426584, 746522, 1493044, 2292889, 2986088, 4585778, 9171556, 16050223, 18343112, 32100446, 64200892, 128401784]

約数ペア:

[(1, 128401784), (2, 64200892), (4, 32100446), (7, 18343112), (8, 16050223), (14, 9171556), (28, 4585778), (43, 2986088), (56, 2292889), (86, 1493044), (172, 746522), (301, 426584), (344, 373261), (602, 213292), (1204, 106646), (2408, 53323)]