20644064

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4007}}^1$

素因数の和:4047

約数の個数: 48

約数和(自身を含む): 48480768

約数和(自身を除く): 27836704

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4007, 5152, 8014, 16028, 28049, 32056, 56098, 64112, 92161, 112196, 128224, 184322, 224392, 368644, 448784, 645127, 737288, 897568, 1290254, 1474576, 2580508, 2949152, 5161016, 10322032, 20644064]

約数ペア:

[(1, 20644064), (2, 10322032), (4, 5161016), (7, 2949152), (8, 2580508), (14, 1474576), (16, 1290254), (23, 897568), (28, 737288), (32, 645127), (46, 448784), (56, 368644), (92, 224392), (112, 184322), (161, 128224), (184, 112196), (224, 92161), (322, 64112), (368, 56098), (644, 32056), (736, 28049), (1288, 16028), (2576, 8014), (4007, 5152)]