128601904

素因数分解:

$2^4\times {\mathrm{509}}^1\times {\mathrm{15791}}^1$

素因数の和:16308

約数の個数: 20

約数和(自身を含む): 249671520

約数和(自身を除く): 121069616

約数列:

[1, 2, 4, 8, 16, 509, 1018, 2036, 4072, 8144, 15791, 31582, 63164, 126328, 252656, 8037619, 16075238, 32150476, 64300952, 128601904]

約数ペア:

[(1, 128601904), (2, 64300952), (4, 32150476), (8, 16075238), (16, 8037619), (509, 252656), (1018, 126328), (2036, 63164), (4072, 31582), (8144, 15791)]