20196272

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1811}}^1$

素因数の和:1877

約数の個数: 40

約数和(自身を含む): 42466032

約数和(自身を除く): 22269760

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 1394, 1811, 2788, 3622, 5576, 7244, 11152, 14488, 28976, 30787, 61574, 74251, 123148, 148502, 246296, 297004, 492592, 594008, 1188016, 1262267, 2524534, 5049068, 10098136, 20196272]

約数ペア:

[(1, 20196272), (2, 10098136), (4, 5049068), (8, 2524534), (16, 1262267), (17, 1188016), (34, 594008), (41, 492592), (68, 297004), (82, 246296), (136, 148502), (164, 123148), (272, 74251), (328, 61574), (656, 30787), (697, 28976), (1394, 14488), (1811, 11152), (2788, 7244), (3622, 5576)]