209848084

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 399044800

約数和(自身を除く): 189196716

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 157, 172, 314, 409, 628, 817, 818, 1634, 1636, 2983, 3268, 5966, 6751, 7771, 11932, 13502, 15542, 17587, 27004, 31084, 35174, 64213, 70348, 128269, 128426, 256538, 256852, 334153, 513076, 668306, 1220047, 1336612, 2440094, 2761159, 4880188, 5522318, 11044636, 52462021, 104924042, 209848084]

約数ペア:

[(1, 209848084), (2, 104924042), (4, 52462021), (19, 11044636), (38, 5522318), (43, 4880188), (76, 2761159), (86, 2440094), (157, 1336612), (172, 1220047), (314, 668306), (409, 513076), (628, 334153), (817, 256852), (818, 256538), (1634, 128426), (1636, 128269), (2983, 70348), (3268, 64213), (5966, 35174), (6751, 31084), (7771, 27004), (11932, 17587), (13502, 15542)]