16639064

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 34960320

約数和(自身を除く): 18321256

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 169, 248, 338, 397, 403, 676, 794, 806, 1352, 1588, 1612, 3176, 3224, 5161, 5239, 10322, 10478, 12307, 20644, 20956, 24614, 41288, 41912, 49228, 67093, 98456, 134186, 159991, 268372, 319982, 536744, 639964, 1279928, 2079883, 4159766, 8319532, 16639064]

約数ペア:

[(1, 16639064), (2, 8319532), (4, 4159766), (8, 2079883), (13, 1279928), (26, 639964), (31, 536744), (52, 319982), (62, 268372), (104, 159991), (124, 134186), (169, 98456), (248, 67093), (338, 49228), (397, 41912), (403, 41288), (676, 24614), (794, 20956), (806, 20644), (1352, 12307), (1588, 10478), (1612, 10322), (3176, 5239), (3224, 5161)]