81700456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{1549}}^1$

素因数の和:1921

約数の個数: 32

約数和(自身を含む): 161820000

約数和(自身を除く): 80119544

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 347, 694, 1388, 1549, 2776, 3098, 6196, 6593, 12392, 13186, 26372, 29431, 52744, 58862, 117724, 235448, 537503, 1075006, 2150012, 4300024, 10212557, 20425114, 40850228, 81700456]

約数ペア:

[(1, 81700456), (2, 40850228), (4, 20425114), (8, 10212557), (19, 4300024), (38, 2150012), (76, 1075006), (152, 537503), (347, 235448), (694, 117724), (1388, 58862), (1549, 52744), (2776, 29431), (3098, 26372), (6196, 13186), (6593, 12392)]