640097912

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{367}}^1\times {\mathrm{9479}}^1$

素因数の和:9875

約数の個数: 32

約数和(自身を含む): 1255910400

約数和(自身を除く): 615812488

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 367, 734, 1468, 2936, 8441, 9479, 16882, 18958, 33764, 37916, 67528, 75832, 218017, 436034, 872068, 1744136, 3478793, 6957586, 13915172, 27830344, 80012239, 160024478, 320048956, 640097912]

約数ペア:

[(1, 640097912), (2, 320048956), (4, 160024478), (8, 80012239), (23, 27830344), (46, 13915172), (92, 6957586), (184, 3478793), (367, 1744136), (734, 872068), (1468, 436034), (2936, 218017), (8441, 75832), (9479, 67528), (16882, 37916), (18958, 33764)]