20280112

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55109}}^1$

素因数の和:55140

約数の個数: 20

約数和(自身を含む): 41001840

約数和(自身を除く): 20721728

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55109, 110218, 220436, 440872, 881744, 1267507, 2535014, 5070028, 10140056, 20280112]

約数ペア:

[(1, 20280112), (2, 10140056), (4, 5070028), (8, 2535014), (16, 1267507), (23, 881744), (46, 440872), (92, 220436), (184, 110218), (368, 55109)]