557648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:411

約数の個数: 40

約数和(自身を含む): 1333248

約数和(自身を除く): 775600

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 383, 728, 766, 1456, 1532, 2681, 3064, 4979, 5362, 6128, 9958, 10724, 19916, 21448, 34853, 39832, 42896, 69706, 79664, 139412, 278824, 557648]

約数ペア:

[(1, 557648), (2, 278824), (4, 139412), (7, 79664), (8, 69706), (13, 42896), (14, 39832), (16, 34853), (26, 21448), (28, 19916), (52, 10724), (56, 9958), (91, 6128), (104, 5362), (112, 4979), (182, 3064), (208, 2681), (364, 1532), (383, 1456), (728, 766)]