20328304

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 41135760

約数和(自身を除く): 20807456

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 193, 227, 232, 386, 454, 464, 772, 908, 1544, 1816, 3088, 3632, 5597, 6583, 11194, 13166, 22388, 26332, 43811, 44776, 52664, 87622, 89552, 105328, 175244, 350488, 700976, 1270519, 2541038, 5082076, 10164152, 20328304]

約数ペア:

[(1, 20328304), (2, 10164152), (4, 5082076), (8, 2541038), (16, 1270519), (29, 700976), (58, 350488), (116, 175244), (193, 105328), (227, 89552), (232, 87622), (386, 52664), (454, 44776), (464, 43811), (772, 26332), (908, 22388), (1544, 13166), (1816, 11194), (3088, 6583), (3632, 5597)]