128864656

素因数分解:

$2^4\times {\mathrm{811}}^1\times {\mathrm{9931}}^1$

素因数の和:10750

約数の個数: 20

約数和(自身を含む): 250008304

約数和(自身を除く): 121143648

約数列:

[1, 2, 4, 8, 16, 811, 1622, 3244, 6488, 9931, 12976, 19862, 39724, 79448, 158896, 8054041, 16108082, 32216164, 64432328, 128864656]

約数ペア:

[(1, 128864656), (2, 64432328), (4, 32216164), (8, 16108082), (16, 8054041), (811, 158896), (1622, 79448), (3244, 39724), (6488, 19862), (9931, 12976)]