20289128

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3617

約数の個数: 32

約数和(自身を含む): 40988160

約数和(自身を除く): 20699032

約数列:

[1, 2, 4, 8, 23, 31, 46, 62, 92, 124, 184, 248, 713, 1426, 2852, 3557, 5704, 7114, 14228, 28456, 81811, 110267, 163622, 220534, 327244, 441068, 654488, 882136, 2536141, 5072282, 10144564, 20289128]

約数ペア:

[(1, 20289128), (2, 10144564), (4, 5072282), (8, 2536141), (23, 882136), (31, 654488), (46, 441068), (62, 327244), (92, 220534), (124, 163622), (184, 110267), (248, 81811), (713, 28456), (1426, 14228), (2852, 7114), (3557, 5704)]