20078672

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 40715400

約数和(自身を除く): 20636728

約数列:

[1, 2, 4, 8, 16, 29, 58, 109, 116, 218, 232, 397, 436, 464, 794, 872, 1588, 1744, 3161, 3176, 6322, 6352, 11513, 12644, 23026, 25288, 43273, 46052, 50576, 86546, 92104, 173092, 184208, 346184, 692368, 1254917, 2509834, 5019668, 10039336, 20078672]

約数ペア:

[(1, 20078672), (2, 10039336), (4, 5019668), (8, 2509834), (16, 1254917), (29, 692368), (58, 346184), (109, 184208), (116, 173092), (218, 92104), (232, 86546), (397, 50576), (436, 46052), (464, 43273), (794, 25288), (872, 23026), (1588, 12644), (1744, 11513), (3161, 6352), (3176, 6322)]